Conductivity is a measure of a material's ability to conduct electricity, which is determined by the flow of charged particles. The correct answer is Option: 1.
The ability to conduct electricity does not depend on the size or shape of the material, but rather on its chemical composition and the mobility of its charged particles. On the other hand, width (Option 2), volume (Option 3), and mass (Option 4) are all size-dependent properties. Width and volume are directly proportional to the size of an object, while mass is a measure of the amount of matter in an object, which is also size-dependent. Hence option 1 is correct.
To know more about Conductivity, here
brainly.com/question/21496559
#SPJ1
--The complete Question is, Which property is size-independent?
1. conductivity
2. width
3. volume
4. mass--
It's a beautiful sunny July day temperature is 22. 4°C and you are playing basketball. You are using a vessel that has a volume of 3. 1 L. Later that night, the temperature drops to 8. 5°C and you go out to play basketball again. What is the volume of the ball that evening in liters?
The volume of the vessel in the evening when the temperature drops to 8.5°C is approximately 2.64 L.
We can use the combined gas law to solve this problem, which relates the pressure, volume, and temperature of a gas. The formula is:
(P1 x V1)/T1 = (P2 x V2)/T2
where P is pressure, V is volume, and T is temperature.
Using the initial conditions, we have:
P1 = P2 (assuming atmospheric pressure remains constant)
V1 = 3.1 L
T1 = 22.4°C + 273.15
= 295.55 K
Solving for V2, we get:
V2 = (P1 x V1 x T2)/(P2 x T1)
= (1 x 3.1 x (8.5°C + 273.15))/(1 x 295.55)
= 2.64 L
As a result, when the temperature lowers to 8.5°C in the evening, the volume of the vessel is roughly 2.64 L.
To know more about the Temperature, here
https://brainly.com/question/30029642
#SPJ4
How many electrons are removed if you ionize one mole of hydrogen using 13. 598V
By considering the concept of Faraday's constant and Avogadro's number we can say that one mole of hydrogen is ionized at 13.598V, removing around 6.022 × 10²³ electrons.
To determine the number of electrons removed when ionizing one mole of hydrogen using 13.598V, we can use the formula:
N = (1 mole) * (Avogadro's number)
where N represents the number of particles (in this case, electrons) in one mole of the substance.
Avogadro's number is approximately 6.022 × 10²³ particles/mol.
Therefore, the number of electrons removed can be calculated as:
N = (1 mole) * (6.022 × 10²³ particles/mol)
= 6.022 × 10²³ electrons
Thus, when ionizing one mole of hydrogen using 13.598V, approximately 6.022 × 10²³ electrons are removed.
To know more about the Ionization refer here :
https://brainly.com/question/1602374#
#SPJ11
`Name:
Date:
Properties of Matter - Crunch time Review
1. If two objects balance like the ones shown below, what must be true?
A. Object A has more mass than object B.
Both objects have the same mass.
C. Object A has more volume than object B.
D. Both objects have the same volume.
Answer:
d
Explanation:
because i did it
The elephant toothpaste reaction and the reaction of sugar and sulfuric acid are examples of
The elephant toothpaste reaction and the reaction of sugar and sulfuric acid are examples of exothermic reactions and chemical decomposition.
The elephant toothpaste reaction is a popular demonstration in which hydrogen peroxide is mixed with a catalyst, usually potassium iodide or yeast, to rapidly decompose the hydrogen peroxide into oxygen gas and water. This results in the rapid production of a large volume of foam, resembling toothpaste being squeezed from a tube. The reaction is exothermic, meaning it releases heat during the process, causing the foam to be warm or even hot to the touch.
On the other hand, the reaction between sugar (sucrose) and sulfuric acid is an example of a dehydration reaction, which is also exothermic. When concentrated sulfuric acid is added to sugar, it removes the water molecules (H2O) from the sugar, leaving behind a black mass of carbon. The reaction produces a significant amount of heat and steam, making it a visually impressive demonstration.
Both of these reactions showcase the power of chemical decomposition and the release of energy during exothermic reactions. The elephant toothpaste reaction emphasizes the rapid release of gas and foam, while the reaction between sugar and sulfuric acid highlights the process of dehydration and the production of heat.
These reactions provide insight into the various ways that chemical reactions can occur and the diverse range of outcomes that can result from different reactants and conditions.
To know more about elephant toothpaste reaction refer here
brainly.com/question/27898682#
#SPJ11
9. An unknown gas has a volume of 200L at 5 atm and -140°C. What is its volume at STP?
10. A Los Angeles class nuclear sub has an internal volume of eleven million liter at a
pressure of 1. 250 atm. If a crewman were to open one of the hatches to the outside
ocean while it was underwater (pressure of 15. 75 atm), what would be the new volume
of the air inside?
11. A man heats a balloon in the oven (Why?. Who knows?. It is a crazy world we live in).
If the balloon initially has a volume of 0. 40 L and a temperature of 20 °C, what is its
volume after he heats it to 250 °C?
Mixed Gas Laws
12. A gas has a pressure of 1. 26 atm and occupies a volume of 7. 40 L. If the gas is
compressed to a volume of 2. 93 L, what is its new pressure?
13. People who are angry sometimes say that they feel as if they'll explode. If a calm
person with a lung capacity of 3. 5 liters and a body temperature of 36 °C gets angry,
what is the volume of their lungs if their temperature rises to 39 °C. Do you think they
will really explode?
9. Using the combined gas law, the volume of the gas at STP can be calculated as 112.2 L. This equation takes into account the initial pressure, temperature, and volume, as well as the new pressure and temperature at STP.
10. Applying Boyle's law, the new volume of the air inside the submarine would be approximately 87,873.2 L. This is calculated by multiplying the initial volume and pressure, and dividing by the new pressure.
11. Using the combined gas law, the new volume of the balloon can be calculated as 0.98 L. This equation takes into account the initial temperature, volume, and pressure, as well as the new temperature.
12. Using Boyle's law, the new pressure of the gas can be calculated as 3.25 atm. This equation takes into account the initial pressure and volume, as well as the new volume.
13. Using Charles' law, the new volume of the person's lungs can be calculated as 3.8 L. This equation takes into account the initial lung capacity and temperature, as well as the new temperature.
It is highly unlikely that a person would actually explode from anger, as the body has mechanisms in place to regulate pressure and prevent such an event.
To know more about Charles' law click on below link:
https://brainly.com/question/16927784#
#SPJ11
What is the temperature of a gas at 100 kPa if the gas had a temperature of
26°C at 200 kPa?
The temperature of the gas at 100 kPa is approximately 149.575 K.
The temperature of a gas at 100 kPa, when it initially had a temperature of 26°C at 200 kPa, can be determined using the combined gas law. The combined gas law relates the initial and final pressures, volumes, and temperatures of a gas, and can be written as:
(P1 * V1) / T1 = (P2 * V2) / T2
where P1 and P2 are the initial and final pressures, V1 and V2 are the initial and final volumes, and T1 and T2 are the initial and final temperatures.
In this case, we are given the initial pressure (P1 = 200 kPa), initial temperature (T1 = 26°C), and final pressure (P2 = 100 kPa). We can convert the initial temperature to Kelvin by adding 273.15, so T1 = 26°C + 273.15 = 299.15 K.
Since the problem does not specify any changes in volume, we can assume that the volume remains constant (V1 = V2). This simplifies the equation to:
(P1 * V) / T1 = (P2 * V) / T2
Canceling out the volume terms (V) on both sides:
P1 / T1 = P2 / T2
Now, we can solve for the final temperature, T2:
T2 = (P2 * T1) / P1
T2 = (100 kPa * 299.15 K) / 200 kPa
T2 ≈ 149.575 K
Therefore, the temperature of the gas at 100 kPa is approximately 149.575 K.
To know more about temperature, visit:
https://brainly.com/question/29133754#
#SPJ11
Use the half-reaction method to balance the following equation, which is in an acidic solution: CIO (ag) + I - (ag) -› I (s) + CI- (ag)
The balanced equation using the half-reaction method for the given redox reaction in acidic solution is: CIO₃⁻ (aq) + 3I⁻ (aq) + 6H⁺ (aq) → I₂ (s) + 3CI⁻ (aq) + 3H₂O (l)
The first step in balancing the redox equation using the half-reaction method is to separate the reaction into two half-reactions, one for the oxidation and one for the reduction. In this case, the iodide ion (I⁻) is oxidized to form molecular iodine (I₂) while the chlorate ion (CIO₃⁻) is reduced to form chloride ion (CI⁻). The half-reactions are:
Oxidation half-reaction: I⁻ → I₂
Reduction half-reaction: CIO₃⁻ → CI⁻
Balance the number of atoms of each element in each half-reaction. In the oxidation half-reaction, we have one iodine atom on both sides. In the reduction half-reaction, we have one chlorine atom on both sides. Balance the charges in each half-reaction by adding electrons to the more positive side. In the oxidation half-reaction, we add two electrons to the left side to balance the charge. In the reduction half-reaction, we add six electrons to the left side to balance the charge.
Multiply each half-reaction by a coefficient so that the number of electrons transferred is equal in both half-reactions. In this case, we need to multiply the oxidation half-reaction by three so that it has six electrons, which is the same as the reduction half-reaction. After multiplying and adding the two half-reactions, we get the balanced equation shown above.
To know more about the Half-reaction, here
https://brainly.com/question/29443725
#SPJ1
A 3. 245g sample of titanium chloride was reacted with sodium metal, producing sodium chloride and metallic titianium. After the sodium chloride was washed out, the remaining titanium metal weighed 0. 819g. What is the empirical formula of the titanium chloride
To find the empirical formula of the titanium chloride, we need to use the given information to determine the moles of titanium and chlorine in the original compound, and then use those values to find the simplest whole-number ratio of atoms in the empirical formula.
First, we can find the moles of titanium in the original compound using the mass of the titanium metal produced:
mass of titanium metal = 0.819 g
molar mass of titanium = 47.867 g/mol
moles of titanium = mass of titanium metal / molar mass of titanium
moles of titanium = 0.819 g / 47.867 g/mol
moles of titanium = 0.0171 mol
Next, we can use the law of conservation of mass to find the moles of chlorine in the original compound:
moles of chlorine = moles of titanium
Now we can find the mass of chlorine in the original compound using the moles of chlorine and the molar mass of chlorine:
moles of chlorine = 0.0171 mol
molar mass of chlorine = 35.453 g/mol
mass of chlorine = moles of chlorine x molar mass of chlorine
mass of chlorine = 0.0171 mol x 35.453 g/mol
mass of chlorine = 0.606 g
Finally, we can use the masses of titanium and chlorine to find the empirical formula of the titanium chloride. The empirical formula gives the simplest whole-number ratio of atoms in a compound, so we need to divide the masses of each element by their respective atomic masses to get the number of moles of each element:
moles of titanium = 0.0171 mol
moles of chlorine = 0.606 g / 35.453 g/mol = 0.0171 mol
The ratio of titanium to chlorine is 1:1, so the empirical formula of the titanium chloride is TiCl<sub>1</sub>, or simply TiCl.
To know more about empirical refer here
https://brainly.com/question/977538#
#SPJ11
The drinking water in Saplingville was found to contain 13 ppb (parts per billion) of lead. What is the concentration of lead in molarity?
Concentration of lead in Saplingville's drinking water: 6.28 x 10^-11 mol/L.
To calculate the concentration of lead in molarity, we need to follow these steps:
1. Convert ppb (parts per billion) to grams per liter (g/L)
2. Determine the molar mass of lead (Pb)
3. Calculate molarity using the formula: Molarity = (mass in grams / molar mass) / volume in liters
1. Conversion from ppb to g/L:
13 ppb = 13 micrograms/L (µg/L), since 1 ppb = 1 µg/L
13 µg/L = 13 x 10^-9 g/L (since 1 µg = 10^-9 g)
2. Molar mass of lead (Pb) is approximately 207.2 g/mol.
3. Calculate molarity:
Molarity = (13 x 10^-9 g/L) / (207.2 g/mol)
Molarity ≈ 6.28 x 10^-11 mol/L
The concentration of lead in Saplingville's drinking water is approximately 6.28 x 10^-11 mol/L.
To know more about ppb calculations:
https://brainly.com/question/31055662
#SPJ11
Na2CO3 (aq) + CoCl2 (aq) →
Express your answer as a chemical equation including phases. Enter noreaction if no precipitate is formed
The chemical equation is Na₂CO₃(aq) + CoCl₂(aq) -> 2NaCl(aq) + CoCO₃ (s), which represents the reaction between sodium carbonate and cobalt chloride to form sodium chloride and cobalt carbonate precipitate.
The balanced chemical equation for the reaction between Na₂CO₃ (sodium carbonate) and CoCl₂ (cobalt chloride) is:
Na₂CO₃ (aq) + CoCl₂ (aq) → CoCO₃ (s) + 2NaCl (aq)
In this reaction, the sodium carbonate reacts with cobalt chloride to produce cobalt carbonate and sodium chloride. This is an example of a double displacement reaction, where the positive and negative ions of two compounds exchange places to form two new compounds.
In this case, the carbonate ion (CO₃²⁻) from sodium carbonate combines with the cobalt ion (Co⁺) from cobalt chloride to form cobalt carbonate (CoCO₃), which is a solid precipitate.
To know more about the double displacement reaction refer here :
https://brainly.com/question/29307794#
#SPJ11
Elemental silicon is oxidized by o2 to give a compound which dissolves in molten na2co3. when this solution is treated with aqueous hydrochloric acid, a precipitate forms. what is the precipitate
Elemental silicon is oxidized by O₂ to give a compound which dissolves in molten Na₂CO₃. when this solution is treated with aqueous hydrochloric acid, a precipitate forms. silica gel is the precipitate.
The compound formed by the oxidation of elemental silicon with O₂ is silicon dioxide (SiO₂), which can dissolve in molten Na₂CO₃ to form sodium silicate (Na₂SiO₃).
When this solution is treated with aqueous hydrochloric acid (HCl), the sodium silicate reacts with the HCl to form a precipitate of silica gel (SiO₂·nH₂O). This reaction is known as the gelatinization of sodium silicate. The sodium chloride (NaCl) formed by the reaction remains in solution.
The silica gel precipitate is often used as a desiccant or drying agent due to its high surface area and ability to adsorb water molecules.
To know more about the silicon refer here :
https://brainly.com/question/14505564#
#SPJ11
A soft lump of clay has water run on top of it. After a long while the water is turned off and allowed to dry. There is no clay left; instead there are small pebbles and other types of components left on the table. Which natural process is this modeling?
A. Erosion
B. Deposition
C. Chemical weathering
D. Physical weathering
The natural process being modeled here is "Chemical weathering". The correct answer is option c.
Chemical weathering is the process by which rocks and minerals are broken down through chemical reactions with water, air, and other substances.
In this case, the clay is being broken down by the water, which is dissolving some of the minerals in the clay and carrying them away. As the water evaporates, the minerals are left behind, forming small pebbles and other components.
This process may occur over a long period of time, depending on the type of clay and the amount of water present. Chemical weathering is an important part of the Earth's natural processes, as it helps to shape the landscape and produce new materials that can be used for building and other purposes.
The correct answer is option c.
To know more about Chemical weathering refer to-
https://brainly.com/question/29616084
#SPJ11
Which term names the result of two or more atoms combining chemically?.
The term that names the result of two or more atoms combining chemically is a molecule.
A molecule is formed when two or more atoms combine chemically by sharing electrons in a covalent bond.
This bonding occurs when atoms have unpaired electrons in their outermost shell, and they share these electrons to complete their valence shells. In a covalent bond, the electrons are shared between atoms, rather than being transferred, as in an ionic bond.
Molecules can be formed between atoms of the same element or different elements, depending on the chemical properties of the atoms.
For example, two oxygen atoms can combine to form an oxygen molecule (O2), while a hydrogen atom can combine with an oxygen atom to form a water molecule (H2O).
Molecules are the building blocks of all substances in the universe. They are responsible for the chemical and physical properties of substances, such as their melting and boiling points, solubility, and reactivity.
Understanding the formation and behavior of molecules is essential for understanding chemistry and the world around us.
To know more about molecule refer to-
https://brainly.com/question/19922822
#SPJ11
Help what’s the answer?
The product is HI
There are six product molecule
Hydrogen is the limiting reactant
There is one iodine molecule in excess
How do you know limiting reactant?To determine the limiting reactant in a chemical reaction, you need to compare the number of moles of each reactant present to the stoichiometry of the balanced chemical equation.
The limiting reactant is the reactant that is completely consumed in a chemical reaction, and which therefore limits the amount of product that can be formed. The other reactant, which is not completely consumed, is called the excess reactant.
Learn more about limiting reactant:https://brainly.com/question/14225536
#SPJ1
Consider the titration of 30. 0 ml of 0. 050 m nh3 with 0. 025 m hcl. Calculate the ph after the following volumes of titrant have been added.
The pH of the solution after the addition of 60 mL of titrant (HCl) is 8.5. This is because when the titrant is added, the reaction between NH3 and HCl takes place, forming NH4Cl, which is an acidic species.
What is pH ?pH is a measure of the acidity or alkalinity of a solution. It is measured on a scale from 0-14, with 7 being neutral. A pH below 7 is considered acidic, while a pH above 7 is considered basic or alkaline. Solutions with a pH less than 7 are said to be acidic, and solutions with a pH greater than 7 are said to be basic. pH is an important parameter in many chemical and biological processes, as it can affect the solubility, reactivity, and stability of the molecules in a solution.
The pH of the solution after the of 90 mL of titrant (HCl) is 6.5. This is because the reaction between NH3 and HCl continues until all of the NH3 is consumed, and the pH of the solution continues to decrease as the amount of HCl increases.
To learn more about pH
https://brainly.com/question/172153
#SPJ4
Help what’s the answer?
The mass of the zinc hydroxide that we need for the reaction is about 21.8 g.
What is the equation of reaction?The equation of a reaction is a chemical equation that represents the chemical change that occurs during a chemical reaction. It is typically written in the form:
Reactants → Products
where the reactants are the starting materials and the products are the substances that are formed as a result of the reaction.
The equation of the reaction is;
Zn(OH)2 + H2SO4 → ZnSO4 + 2H2O
Number of moles of H2SO4 = 21.1 g/98 g/mol
= 0.22 moles
If the reaction is 1:1,
Mass of the Zn(OH)2 required = 0.22 moles * 99 g/mol
= 21.8 g
Learn more about reaction:https://brainly.com/question/28984750
#SPJ1
What is the mass in grams of strontium chloride that reacts with 300. 0g of sulfuric acid
To solve this problem, we first need to write and balance the chemical equation for the reaction between strontium chloride and sulfuric acid:
SrCl2 + H2SO4 → SrSO4 + 2HCl
According to the balanced chemical equation, one mole of strontium chloride reacts with one mole of sulfuric acid to produce one mole of strontium sulfate and two moles of hydrochloric acid.
Next, we need to calculate the number of moles of sulfuric acid we have:
moles of H2SO4 = mass of H2SO4 / molar mass of H2SO4
moles of H2SO4 = 300.0 g / 98.08 g/mol
moles of H2SO4 = 3.057 mol
Finally, we can use the stoichiometry of the balanced chemical equation to determine the number of moles of strontium chloride that will react with 3.057 moles of sulfuric acid:
moles of SrCl2 = moles of H2SO4
moles of SrCl2 = 3.057 mol
Now we can calculate the mass of strontium chloride using its molar mass:
mass of SrCl2 = moles of SrCl2 x molar mass of SrCl2
mass of SrCl2 = 3.057 mol x 158.53 g/mol
mass of SrCl2 = 485.1 g
Therefore, 485.1 grams of strontium chloride will react with 300.0 grams of sulfuric acid.
Explanation:
To solve this problem, we use stoichiometry, which is a method that relates the amount of reactants and products in a chemical reaction based on their balanced chemical equation. In this case, we first write and balance the chemical equation for the reaction between strontium chloride and sulfuric acid. Then, we calculate the number of moles of sulfuric acid given its mass and molar mass. Next, we use the stoichiometry of the balanced chemical equation to determine the number of ontium chloride that will react with the given amount of sulfuric acid. Finally, we calculate the mass of strontium chloride using its molar mass and the calculated number of moles. By following these steps, we can determine the mass of strontium chloride that will react with 300.0 grams of sulfuric acid.
Question 1 options: calculate the energy, in joules, of a photon that has a frequency of 3.73 x 1014 s-1.
The energy of a photon can be calculated using the equation E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the photon.
Substituting the given values, we get:
E = (6.626 x 10⁻³⁴ J s) x (3.73 x 10¹⁴ s⁻¹)
E = 2.47 x 10⁻¹⁹ J
Therefore, the energy of the photon with a frequency of 3.73 x 10¹⁴ s¹ is 2.47 x 10⁻¹⁹ J.
This value may seem small, but it is consistent with the fact that photons with higher frequencies (and thus higher energies) are required to cause certain types of chemical reactions and ionization processes.
The energy of a photon with a frequency of 3.73 x 1010¹⁴ s¹ is calculated using the equation E = hf, where h is Planck's constant. The energy of the photon is found to be 2.47 x 1010⁻¹⁹ J.
To know more about the energy of a photon refer here :
https://brainly.com/question/2393994#
#SPJ11
How could you use iron oxide to prepare iron nitrate?
Iron oxide can be reacted with nitric acid to prepare iron nitrate. This reaction involves the displacement of hydrogen ions in nitric acid by iron ions in iron oxide, leading to the formation of iron nitrate and water.
To use iron oxide to prepare iron nitrate, you can follow these steps:
1. Begin with iron oxide (Fe₂O₃), which is a compound consisting of iron and oxygen.
2. Dissolve the iron oxide in a strong acid, such as concentrated nitric acid (HNO₃). This reaction will produce iron nitrate (Fe(NO₃)₃) and water as byproducts. The chemical equation for this reaction is:
2Fe₂O₃ + 6HNO₃ → 4Fe(NO₃)₃ + 3H₂O
3. After the reaction is complete, you can separate the iron nitrate from the remaining mixture by filtration or evaporation. The iron nitrate can then be collected in a crystalline form for further use.
By following these steps, you can successfully use iron oxide to prepare iron nitrate.
Learn more about iron oxide at https://brainly.com/question/11801757
#SPJ11
A chemist interested in the efficiency of a chemical reaction would calculate the:.
A chemist interested in the efficiency of a chemical reaction would calculate the c. percentage yield.
The percentage yield compares the actual yield of a reaction to the theoretical yield and indicates how efficient the reaction is in producing the desired product. It is calculated by dividing the actual yield by the theoretical yield and multiplying by 100 to express it as a percentage.
The other options listed are also important measurements in chemistry but are not directly related to assessing the efficiency of a reaction:
a. Mole ratio: The mole ratio is a ratio that indicates the stoichiometric relationship between the reactants and products in a chemical reaction. It is used to determine the relative amounts of substances involved in a reaction, but it does not directly measure the efficiency of the reaction.
b. Energy released: This refers to the energy that is released or absorbed during a chemical reaction. While energy considerations are important, they do not directly measure the efficiency of the reaction.
d. Rate of reaction: The rate of reaction refers to how quickly a chemical reaction occurs, which is an important factor but not the direct measurement of efficiency. The rate of reaction can be influenced by factors such as temperature, concentration, and catalysts, but it does not provide information about the overall efficiency of the reaction in terms of yield.
To know more about the chemical reaction refer here :
https://brainly.com/question/29039149#
#SPJ11
Complete question :
A chemist interested in the efficiency of a chemical reaction would calculate the :
a. mole ratio.
b. energy released.
c. percentage yield.
d. rate of reaction.
What is the rate of change of total pressure in the vessel during the reaction?.
The rate of change of total pressure in a vessel during a reaction depends on the stoichiometry of the reaction and the behavior of the reactants and products with respect to pressure.
In general, if the reaction involves the production or consumption of gases, the total pressure in the vessel will change as the reaction proceeds. The rate of change of total pressure can be calculated using the ideal gas law, which relates the pressure, volume, and temperature of a gas:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature.
If the number of moles of gas changes during the reaction, the pressure will change accordingly. The rate of change of pressure can be calculated using the following equation:
ΔP/Δt = (Δn/Δt)RT/V
where ΔP/Δt is the rate of change of pressure, Δn/Δt is the rate of change of the number of moles of gas, R is the ideal gas constant, T is the temperature, and V is the volume.
Therefore, to determine the rate of change of total pressure in a vessel during a reaction, it is necessary to know the stoichiometry of the reaction and the behavior of the reactants and products with respect to pressure.
To know more about stoichiometry refer to-
https://brainly.com/question/30215297
#SPJ11
How many grams of CaCO3 are produced when 98. 2 grams of CaO are reacted with an excess of Co2 according to the equation provided? CaO+CO2-->CaCO3
175.17 grams of CaCO₃ are produced when 98.2 grams of CaO are reacted with an excess of CO₂ according to the given equation.
To solve this problem, we need to use stoichiometry which deals with the quantitative relationships between reactants and products in chemical reactions.
The balanced chemical equation for the reaction is:
CaO + CO₂ → CaCO₃
This equation tells us that for every 1 mole of CaO and 1 mole of CO₂ that react, we get 1 mole of CaCO₃.
We are given the mass of CaO that is used in the reaction. To calculate the mass of CaCO₃ that is produced, we need to use stoichiometry and the molar mass of CaCO₃.
The molar mass of CaCO₃ is the sum of the atomic masses of one calcium atom (Ca), one carbon atom (C), and three oxygen atoms (O). Using the values from the periodic table, we can calculate the molar mass of CaCO₃ as:
molar mass of CaCO₃ = 1 × atomic mass of Ca + 1 × atomic mass of C + 3 × atomic mass of O
= 1 × 40.08 g/mol + 1 × 12.01 g/mol + 3 × 16.00 g/mol
= 100.09 g/mol
To calculate the number of moles of CaO that reacted, we can use the following equation:
n = m/M
where n is the number of moles of CaO, m is the mass of CaO, and M is the molar mass of CaO.
Using the given values, we get:
n = 98.2 g / 56.08 g/mol = 1.749 mol
This is the number of moles of CaO that reacted in the reaction.
Since the reaction is 1:1, meaning that one mole of CaO reacts with one mole of CO₂ to produce one mole of CaCO₃, we know that the number of moles of CaCO₃ produced is also 1.749 mol.
Finally, to calculate the mass of CaCO₃ produced, we can use the following equation:
m = n × M
where m is the mass of CaCO₃ produced, n is the number of moles of CaCO₃ produced, and M is the molar mass of CaCO₃.
Using the given values, we get:
m = 1.749 mol × 100.09 g/mol = 175.17 g
Learn more about CaCO₃ at https://brainly.com/question/30594488.
#SPJ11
4 points
A solution consists of 2. 50 moles of NaCl dissolved in
100. Grams of H20 at 25°C. Compared to the boiling
point and freezing point of 100. Grams of H20 at
standard pressure, the solution at standard pressure
has
A) a lower boiling point and a higher freezing point
B) a higher boiling point and a lower freezing point
C) a higher boiling point and a higher freezing point
D) a lower boiling point and a lower freezing point
A solution consists of 2.50 moles of NaCl dissolved in 100 grams of H₂0 at 25°C. Compared to the boiling point and freezing point of 100 grams of H₂0 at standard pressure, the solution at standard pressure has a lower boiling point and a higher freezing point. The correct option is A.
When a solute, such as NaCl, is dissolved in a solvent, such as water, the boiling point of the solution is raised and the freezing point is lowered. This phenomenon is known as boiling point elevation and freezing point depression.
The extent of the change in boiling point and freezing point depends on the concentration of the solute in the solution. In this case, the solution consists of 2.50 moles of NaCl dissolved in 100 grams of H₂O. This concentration of NaCl will cause the solution to have a lower boiling point and a higher freezing point compared to pure water.
The reason is that the NaCl molecules dissociate into ions when dissolved in water, which increases the number of particles in the solution and lowers the vapor pressure, making it more difficult for the solution to boil. Additionally, the presence of the solute disrupts the formation of crystal lattice structures in the solvent, causing a decrease in the freezing point. Hence, option A is correct.
To know more about solute, refer here:
https://brainly.com/question/13812915#
#SPJ11
Complete the balanced chemical equation for the following reaction between a weak acid and a strong base. HClO₂(aq) + Ba (OH)₂(aq) →
The balanced chemical equation for the reaction between a weak acid, HClO₂, and a strong base, Ba(OH)₂, is:
2 HClO₂(aq) + Ba(OH)₂(aq) → Ba(ClO₂)₂(aq) + 2 H₂O(l)
The balanced chemical equation for the reaction between a weak acid, HClO₂, and a strong base, Ba(OH)₂, is:
2 HClO₂(aq) + Ba(OH)₂(aq) → Ba(ClO₂)₂(aq) + 2 H₂O(l)
In this reaction, the Ba(OH)₂ dissociates completely into Ba²⁺ and 2 OH⁻ ions in solution. The HClO₂ is a weak acid and therefore only partially dissociates into H⁺ and ClO₂⁻ ions in solution. The reaction between these ions forms Ba(ClO₂)₂, a salt, and water.
Visit to know more about Chemical equation:-
https://brainly.com/question/26694427
#SPJ11
How might the jetstream affect the winter in your town this winter explain your answer
The jetstream is a high-altitude, fast-moving air current that can impact weather patterns across large areas.
In the winter, changes in the jetstream can affect the amount and type of precipitation, as well as the temperature. For example, if the jetstream shifts southward, bringing colder air from the Arctic, your town may experience colder than average temperatures and more snowfall.
Alternatively, if the jetstream stays north, your town may experience milder temperatures and less precipitation. Overall, the jetstream can have a significant impact on the winter weather in your town, and it's important to keep an eye on its movements to prepare for any potential weather changes.
To know more about air current click on below link:
https://brainly.com/question/13653784#
#SPJ11
a compound with a molecular weight of 229.61 g/mol was dissolved in 50.0 ml of water. 1.00 ml of this solution was placed in a 10.0 ml flask and diluted to the mark. the absorbance of this diluted solution at 510 nm was 0.472 in a 1.000 cm cuvet. the molar absorptivity of the compound, at 510 nm, is 6,310 m-1 cm-1. calculate the concentration of the compound in the initial 50.0 ml solution.
The concentration of the compound in the initial 50.0 ml solution is 0.0172 g/L.
The concentration of the compound in the initial 50.0 ml solution can be calculated as follows:
First, we need to calculate the absorbance of the 1.00 ml solution in the 10.0 ml flask:
Absorbance = (0.472)(10.0/1.000) = 4.72
Next, we can use the Beer-Lambert Law to calculate the concentration of the compound in the initial solution:
A = εbc
where A is the absorbance, ε is the molar absorptivity, b is the path length (1.000 cm), and c is the concentration in mol/L.
Plugging in the values we have:
4.72 = (6,310 M^-1 cm^-1)(1.000 cm)(c)
Solving for c, we get:
c = 7.48 x 10^-5 mol/L
Finally, we can convert this to the concentration in the initial 50.0 ml solution:
moles of compound = (7.48 x 10^-5 mol/L)(0.0500 L) = 3.74 x 10^-6 mol
mass of compound = (229.61 g/mol)(3.74 x 10^-6 mol) = 0.000859 g
Concentration = mass/volume = 0.000859 g/0.0500 L = 0.0172 g/L
Therefore, the concentration of the compound in the initial 50.0 ml solution is 0.0172 g/L.
To know more about the Solution, here
https://brainly.com/question/16083903
#SPJ4
Hydrogen chloride gas (hcl) diffuses 1.8 times faster than an unknown gas. determine the molar mass of the unknown gas.
The molar mass of the unknown gas is approximately 11.25 g/mol.
To determine the molar mass of the unknown gas, we can use Graham's Law of Diffusion.
Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root of its molar mass In other words:
Rate of diffusion of gas A / Rate of diffusion of gas B = sqrt(Molar mass of gas B / Molar mass of gas A)
Using the given information, we can set up an equation:
1.8 (rate of diffusion of unknown gas) / 1 (rate of diffusion of HCl) = sqrt(Molar mass of HCl / Molar mass of unknown gas)
Squaring both sides of the equation, we get:
3.24 = Molar mass of HCl / Molar mass of unknown gas
Multiplying both sides by the molar mass of the unknown gas, we get:
Molar mass of unknown gas = Molar mass of HCl / 3.24
The molar mass of HCl is 36.46 g/mol. Plugging this in, we get:
Molar mass of unknown gas = 36.46 g/mol / 3.24
Molar mass of unknown gas = 11.25 g/mol (rounded to two decimal places)
Therefore, the molar mass of the unknown gas is approximately 11.25 g/mol.
Know more about Graham's Law here:
https://brainly.com/question/31488584
#SPJ11
If 450. 5 calories of heat energy are added to a 89. 6 gram sample of aluminium (specific heat of 0. 215 calories per gram degree celsius) and the initial temperature of the sample is 25. 7 degrees celsius then what is the final temperature in degrees celsius?
The final temperature of an 89.6 gram sample of aluminum is calculated to be 30.6°C after 450.5 calories of heat energy is added, given that the specific heat of aluminum is 0.215 calories per gram degree Celsius and the initial temperature is 25.7°C.
To solve this problem, we can use the formula:
Q = m x c x ΔT
where Q is the amount of heat energy added, m is the mass of the sample, c is the specific heat of the material, and ΔT is the change in temperature.
We are given Q = 450.5 calories, m = 89.6 grams, c = 0.215 calories per gram degree Celsius, and the initial temperature of the sample T1 = 25.7°C.
Let's assume that the final temperature of the sample is T2. Therefore, we can write:
Q = m x c x (T2 - T1)
Solving for T2, we get:
T2 = (Q/mc) + T1
Substituting the given values, we get:
T2 = (450.5 calories)/(89.6 grams x 0.215 calories per gram degree Celsius) + 25.7°C
T2 = 30.6°C
Therefore, the final temperature of the sample is 30.6°C.
To know more about the specific heat refer here :
https://brainly.com/question/11297584#
#SPJ11
Part D
Press the yellow reset button at the bottom of the simulation screen. Under Constant Parameter, select Volume. Again,
pump the pump handle once to introduce 40 to 50 gas molecules. Record the pressure in the data table.
Use the heat control to heat the gas to each of the other temperatures in the data table, and record the new pressure.
Answer from Edmentum :)
The instruction is to use the PhET simulation to perform an experiment where the constant parameter is set to volume, and then to pump 40 to 50 gas molecules into the simulation.
The pressure of the gas is recorded in a data table. Next, the heat control is used to heat the gas to each of the other temperatures in the data table, and the corresponding new pressure values are recorded in the data table. This experiment demonstrates the relationship between pressure and temperature, which is known as the ideal gas law.
By holding the volume constant and changing the temperature, we can observe how the pressure of the gas changes. This experiment is useful in understanding real-world phenomena such as how temperature affects the pressure of gas inside a container, such as a tire or a balloon.
To know more about the Pressure, here
https://brainly.com/question/15813117
#SPJ4
What is the molar mass of H3PO4? (Molar mass of H = 1. 0079 g/mol; P = 30. 974 g/mol; O = 15. 999 g/mol) (3 points) a 72. 98 g/mol b 78. 22 g/mol c 88. 24 g/mol d 97. 99 g/mol
Answer: d. 97.99g/mol
Explanation:
We need to add the molar mass of each of the atoms from the formula:
H3PO4 has 3x H atoms, 1x P atom, and 4x O atoms
H 3x 1.0079= 3.0237g/mol
P 1x 30.974= 30.974g/mol
O 4x 15.999= 63.996g/mol
now add all of the totals for each type of atom
3.0237 + 30.974 + 63.996= 97.9937g/mol
our answer is d. 97.99g/mol