Chemistry College

What is the molar mass of H₂CO3?
A. 61 g/mol
B. 62 g/mol
C. 30 g/mol
D. 29 g/mol

Answers

Answer 1

Answer:

ans is b 62 g/mole

because mass of h is 2 an carbon is 12 and 3 atoms of oxygen in 16*3 =48 adding all we get 62 g/mole

Related Questions

Learning Task No. 2: Study the diagram above. Answer the guide questions.
Guide Questions:
1. What do you call the force acting on the ball along the horizontal line or
along the force that makes the ball in motion?
2. What makes the ball stop on rolling after sometime?
3. What makes the ball keep on rolling?

Answers

1. "Fn" stands for "Normal Force," "Fg" for "Gravity Force," "Ff" for "Force Friction," and "A" for "Applied Force." 2. As a result of the friction, which causes the ball to stop. 3. The reason the ball rolls is due to the force that is imparted to it.

The definition of force is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A force that opposes this motion of the hands is activated when they brush against one another. Frictional force is the force resisting motion applied in the direction perpendicular to the direction of motion of the hands.

Learn more about Force here-

https://brainly.com/question/13191643

#SPJ9

What element completes the 7s sub level?

Answers

Answer:

Radium

Explanation:

The doctor orders 525 mg of a medication to be administered every 12 hours. The
medication comes in 150 mg scored tablets. How many tablets need to be administered
to the patient in one day?

Answers

Answer: 7 pills

Explanation:

A day is 24 hours so you multiply 12 x 2 and do the same to 525, 525 x 2 = 1050

then divide 1050 by 150 and you get 7

The world's record for the largest cup of coffee was broken on
October 15. 2010. with a 2010-gal cup of coffee in Las Vegas, Ive
vada. If a cup of coffee contains 473 mL of coffee, how many
cups of coffee would be reauired to till this coffee cup

Answers

The number of cups of coffee in  a 2010-gal cup of coffee  is 16086 cups of coffee

What is the number of cups of coffee in  a 2010-gal cup of coffee?

The  number of cups of coffee in  a 2010-gal cup of coffee is calculated as follows:

Number of cups of coffee = volume of 2010-gal in ml/473 ml

Volume of large cup of coffee = 2010-gal

Number of mL in 1 gal = 3785.41 mL

2010 gal in mL = 2010 * 3785.41

2010 gal in mL = 7608674.1 mL

Number of cups of coffee = 7608674.1 mL/473 mL

Number of cups of coffee = 16086 cups of coffee

In conclusion, the number of cups pf coffee in 2010 gal is obtained using the conversion factor between gal and mL

Learn more about volume in gal to mL at: https://brainly.com/question/13769735

#SPJ1

Zn(s) + 2HCl(aq) > H2(g) + ZnCl2 (aq)
When 25.0 g of Zn reacts, how many grams of ZnCl2 are produced?
A. 1.5 B. 0.59 C. 104 D. 25 E. 52

Answers

Taking into account the reaction stoichiometry, the correct answer is option E. when 25.0 g of Zn reacts, 52 grams of ZnCl₂ are produced.

Reaction stoichiometry

In first place, the balanced reaction is:

Zn + 2 HCl → H₂ + ZnCl₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Zn: 1 moleHCl: 2 molesH₂: 1 moleZnCl₂: 1 mole

The molar mass of the compounds is:

Zn: 65.37 g/moleHCl: 36.45 g/moleH₂: 2 g/moleZnCl₂: 136.27 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

Zn: 1 mole ×65.37 g/mole= 65.37 gramsHCl: 2 moles ×36.45 g/mole= 72.9 gramsH₂: 1 mole ×2 g/mole= 2 gramsZnCl₂: 1 mole ×136.27 g/mole= 136.27 grams

Mass of ZnCl₂ formed

The following rule of three can be applied: if by reaction stoichiometry 63.37 grams of Zn form 136.27 grams of ZnCl₂, 25 grams of Zn form how much mass of ZnCl₂?

mass of ZnCl₂= (25 grams of Zn× 136.27 grams of ZnCl₂)÷ 63.37 grams of Zn

mass of ZnCl₂= 53.76 grams

This mass can be considered approximately equal to 52 grams. Finally, the correct answer is option E. when 25.0 g of Zn reacts, 52 grams of ZnCl₂ are produced.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

Why is CrO named using a roman numeral, chromium (II) oxide, whereas CaOis named without a roman numeral in the name, calcium oxide?

Answers

Answer: Cr (chromium) has multiple oxidation states, while Ca (calcium) only has one.

Explanation: You only specify with a Roman numeral when the metal/positively charged ion in the compound has multiple charges. Chromium is a transition metal, and most transition metals have multiple charges. Calcium is a group 2 metal so it will only have a charge of +2.

If you have a solution of 3M HCl in water, how much solute in grams is there in 250 mL?

Answers

Answer:

27.3 g HCl

Explanation:

**Be sure to arrange the conversion in a way that allows for the cancellation of units.

(Step 1)

Convert milliliters (mL) to liters (L).

1,000 mL = 1 L

 250 mL                1 L
---------------  x  -----------------  =  0.25 L
                         1,000 mL

(Step 2)

Use the molarity ratio to find the moles of HCl.

Molarity = moles / L

3 M = moles / 0.25 L

0.75 = moles

(Step 3)

Convert moles to grams using the molar mass of HCl.

Molar Mass (HCl): 1.008 g/mol + 35.453 g/mol

Molar Mass (HCl): 36.461 g/mol

0.75 moles HCl             36.461 g
--------------------------  x  --------------------  =  27.3 g HCl
                                         1 mole

Other Questions
For her 1st birthday, Ruth's grandparents invested $1500 in an 18-year certificate for her that pays 12% compounded annually. How much will the certificate be worth onRuth's 19th birthday? (Round your answer to the nearest cent.) The cash basis of accounting records revenues and expenses when the cash is exchanged while the accrual basis of accounting. which theme of the poem is reflected in this stanza? those who are prevented from experiencing freedom should not fight for it. black americans willingness to fight in the civil war helped unite the country. freedom from enslavement is the only cause worth dying for. the civil war left a scar on this country that can never be erased. a number is chosen at random from the positive, even integers from 2 to 50. find the probability that the number chosen is divisible by 5 or 8. ESSENTIAL QUESTIONS. What are the characteristics of a civilization? How did patterns of civilization differ between the ancient andmedieval worlds? What are some things tania should take into consideration when planning education classes for adult learners? choose the word or phrase that best completes each sentence. caesar augustus made sure that the central government controlled . engineers built the , which had government offices and statues. a mail service was created to improve communication. caesar augustus ordered the construction of aqueducts , which improved water supplies and provided water for crops. ? > Spain's American coloniesincreasingly rely on African slave labor.Which statement best completes the diagram?A. Indigenous Americans launch violent attacks against Spanish colonists.B. Indigenous American populations are wiped out by European diseases.C. Indigenous Americans are guaranteed equal rights by the Spanish government.D. Indigenous Americans immigrate to North America in huge whats the answer to area=11in2 A point is plotted on the number line at 2. A second point is plotted at 4.What is the length of a line segment joining these points?Enter your answer as a simplified mixed number in the box.units units 1. A rectangle has area 48cm. a) What might its perimeter be? The temperature in Anchorage,Alaska, dropped over four consecutive hours from 0 to -44F. If the temperature dropped the same amount each hour, how much did the temperature change each hour? please hurry!!When we hear discussions regarding policy, the phrase living wage often comes up. Sometimes it regards a minimum hourly wage; other times, it is used in the context of universal basic income. As we expand this living wage discussion from a local to a nationwide discussion, we will run into some challenges. In this discussion, your task is to: Pick a challenge that would make it difficult to define a set living wage across a nationExplain why this challenge creates a difficulty, and the obstacles it makes to create good policy Why did the people board the Mayflower believe it was necessary for the men to agree tothe compact, but not the women? . Rewrite Y = 4x+16 +5 y to make it easy to graph using a translation. Describe the graph. Write 'six more than four times a number equals 18' as an equation. 6x + 4 = 18 4x + 6 = 18 6x(4) = 18 4x(6) = 18 21. The cost to mail a package is $5.00. Brian has postcard stamps that are worth $0.34 each and first classstamps that are worth $0.49 each.If Brian puts 7 first class stamps on the package, how many postcard stamps will be needed. Which of the following accurately describes a similarity between the social hierarchies of medieval Europe and Japan? Both had a king at the top who wielded tremendous power. Both had a warrior class that owned land they allowed peasants to live on. Both held a very high view of artisans as the inventors of essential goods. Both had a similar relationship between lords and vassals. How did Katya echazarreta make history in the science community Write a function g whose graph is a reflection in the x-axis of the graph of f(x)=|x|5