Answer:
what
Explanation:
what is the question
If the concentration of sn2+ in the cathode compartment is 1.30 m and the cell generates an emf of 0.21 v , what is the concentration of pb2+ in the anode compartment?
By the use of the Nernst equation, the concentration of the lead solution is 4.8 * 10^-8 M.
What is Nernst equation?The Nernst equation is the equation that is used to obtain the EMF of a cell under non standard conditions.
Now;
E°cell = -0.01 V
Ecell = 0.21V
[sn2+] = 1.30 M
[pb2+] = ?
From;
Ecell = E°cell - 0.0592/n logQ
The equation is; Sn^+ + Pb ----> Sn(s) + Pb^2+
0.21 = -0.01 - 0.0592/2 log(x/1.30 )
0.21 + 0.01 = -0.0592/2 log(x/1.30 )
0.22/-0.0296 = log(x/1.30 )
-7.43 = log(x/1.30 )
Antilog(-7.43) = x/1.3
x = 4.8 * 10^-8 M
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At what temperature teq do the forward and reverse corrosion reactions occur in equilibrium?
Standard Gibb's free energy at 298K and 5975K is 3.16×10⁶J and -3.83×10⁵J respectively, and temperature at equilibrium state is 5362.3 K.
What is the standard Gibb's free energy?The complete question is in the brainly link at the end. We can say that;
Standard Gibb's free energy of any reaction is gotten from the formula;
∆G° = ∆H° - T∆S°
where;
∆G° is change in free energy
∆H° is change in enthalpy = 3352 kJ = 3352 × 10³J
∆S° is change in entropy = 625.1 J/K
T is absolute temperature = 298 K
Plugging in the relevant values into the gibbs energy equation gives;
∆G° = (3352 × 10³) - (298 × 625.1)
∆G° = 3.16 × 10⁶J
Gibb's free energy at temperature of 5,975 K is;
∆G° = (3,352 × 10³) - (5,975 × 625.1)
∆G° = -3.83 × 10⁵J
At the equilibrium state, the value of Gibb's free energy is zero. Thus we can calculate the temperature as;
0 = (3352 × 10³)J - (T × 625.1 J/K)
Solving for T gives;
T = 5362.3 K
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Jose constructed triangle dce, where m∠d = 103° and m∠c = 22°. remy constructed triangle pqt, where m∠q = 22°, and m∠t = 55°. are the two triangles similar to one another?
Yes, the two triangles constructed by Jose are similar because two pairs of corresponding angles in the triangles are congruent.
Why are the triangles similar?This similarity is as a result of the angle by angle similarly theorem
Note that when two pairs of a given corresponding angles are said to be congruent, one can say that the triangles are similar and this is the case with Jose triangles.
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Δdef ∼ δabc. what is the sequence of transformations that maps δabc to δdef? triangles a b c and d e f on a coordinate plane. a b c has coordinates a 1 comma 1, b 4 comma 4, and c 3 comma 2. d e f has coordinates d negative 1 comma negative 1, e negative 4 comma 2, and f negative 2 comma 1. a reflection across the y-axis and a translation 4 units down a rotation of 180° about the origin and a dilation with center (0, 0) and scale factor 2 a reflection across the y-axis and a translation 2 units down a rotation of 90° about the origin and a translation 2 units down
Answer:
A
Explanation:
What can the reader infer from the following statement? ""so he finally broke. so even dally has a breaking point.""
Consider the right triangle.a right triangles with side lengths 28 meters and 45 meters. the hypotenuse is unknown.what is the length of the hypotenusestartroot 53 endrootstartroot 1,241 endroot53 m2809 m
Answer:
Start by using the formula a^2 + b^2 = c^2.
Explanation:
c^2 is for the hypotenuse, which is c.
a & b are the two side lengths.
Who, in the scary fairy tale, will be happy that goldilocks found jack and jill? goldilock's boss their mom the tree bears the vegetables
Based on the scary fairy tale, Jack and Jill's mom would be the happiest that are children were found by goldilocks.
What is a fairy tale?A fairy tale is also referred to as a fictional story and it can be defined as an imaginative literary work (story) that is often narrated and shown in a variety of media to children, especially through the use of fanciful, magical, and wondrous characters such as goldilocks, goblins, elves, etc.
Based on the scary fairy tale, Jack and Jill's mom would be the happiest that are children were found by goldilocks because she was really saddened by the news of their disappearance.
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Fill in the blank with the spanish word that best completes the following sentence. ______________ es un modo de transporte, como un coche. el hueso roto sentirse mal la cita la ambulancia
The complete sentence in Spanish is:
"La ambulancia es un modo de transporte, como un coche".
How to complete the blank?
We need to complete the sentence:
" ______________ es un modo de transporte, como un coche"
This can be translated to:
"______ is a medium of transport, like a car"
And the options (and the translations) are:
El hueso roto (the broken bone)Sentirse mal (felling bad)La cita (the date)La ambulancia (the ambulance).We can see that the correct option is the last one, so the complete sentence is:
"La ambulancia es un modo de transporte, como un coche".
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Answer:
D. La ambulancia
Explanation:
Edg.2022
Ddt is a synthetic compound commonly used as an insecticide and in the 20th century, was used to control mosquito species that commonly spread diseases like malaria. the data illustrates the percent resistance for three species of mosquitoes over three decades. contrast this data to the steps of natural selection and explain the trend seen here.
Answer:
D
Explanation:
Which type of stoichiometric calculation does not involve the gram formula mass
A type of stoichiometric calculation that doesn't involve the use of gram formula mass is volume-volume problem.
What is a stoichiometric calculation?A stoichiometric calculation can be defined as a type of calculation which is typically used to measure the quantitative relationships that exists between two or or more chemical compounds that are undergoing a chemical reaction.
This ultimately implies that, a stoichiometric calculation is generally used to study the quantities of reactants and products of two or or more chemical compounds before, during, and after a chemical reaction.
In this scenario, volume-volume problem is a type of stoichiometric calculation that doesn't involve the use of gram formula mass.
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Mom or me can pick you up near the soccer field when you're done. error
Places with higher elevations experiences cold climate because the ______________ decreases as the ____________ increases.
Answer:
Pressure decreases as the height increases.
Explanation:
Water in the surface zone of the ocean is for the most part
The water cycle describes how water _____ from the ocean, plants, animals or waste. condenses evaporates
What is mate? a musical instrument a tea that comes from the yerba mate plant a game they play a wild animal
Answer: B) a tea that comes from the yerba mate plant
Explanation: jus took the quiz
As a healthy substitute for coffee, mate is a tea-like beverage that is most popular in Argentina, Uruguay, Paraguay, and Brazil. The dried leaves of the subtropical Latin American shrub Yerba Mate are used to make this infusion.
What is a beverage?Beverages are any liquids that can slake a thirst. Drinks can be any form of liquid. Beverage items include all types of drinks, including water, tea, coffee, milk, juice, and others.
Mate is from Latin America. It is like coffee, juice, and any other beverage.
Therefore, it is a beverage.
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Click this link to visit the o*net page for food service managers. scroll down and look at the tools and technology sections. according to o*net, what are some common tools used by food service managers? select four options. cash registers laser printers stoves and ovens heating equipment notebook and personal computers personal digital assistants or organizers
Answer:
1, 2, 5, 6
Explanation:
just did it
Answer:
1, 2, 5, 6
Explanation:
The other person is correct!
Information collected from online databases is an example of which data
Answer:
Secondary data is the data that has came from an earlier observation and data is organised. Information collected from online database is an example of secondary data. Primary Data: It is the data that is collected from the population or experiment that is not organised. For example Height of people in a particular area.
Explanation:
hope this helps
Select the correct answer from each drop-down menu. thaddeus stevens was a powerful . he wanted the former confederate states to be treated as conquered territories. his views were supported by , who worked with stevens to demand equal rights for everyone in the united states.
Answer:
3. Radical Republican , 2. Andrew Johnson
Explanation:
PLATO
Answer:
the first person is correct
Explanation:
Why is freddie watching a surgical procedure? a. because he will be having a similar type of surgery performed on himself b. because he is writing an article about a new procedure that the hospital is using c. because he is writing an article about dr. cole d. because he is working on a science project for school
Answer:
b. because he is writing an article about a new procedure that the hospital is using
Explanation:
i just took the test and said the answer was b
What context clue best helps readers determine the meaning of the word standard? ""numerous"" ""rigidly fixed"" ""tea-time"" ""subject""
The context clue which best helps readers to determine the meaning of the word standard is: B. "rigidly fixed"
What is a context clue?A context clue can be defined as hints that provides the meaning of an unfamiliar word, which is literally hidden in plain sight in a literary work such as a paragraph, essay, articles, or passage.
In this context, "rigidly fixed" is a context clue which best helps readers to determine the meaning of the word standard because it is not dynamic but static.
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Answer:
B. "rigidly fixed"
Explanation:
theres no other option
Costs which are always relevant in decision making are those costs which are:
Answer:
Differential, avoidable, and opportunity
What is the purpose of the description in this passage from travels with charley? he is showing that america is a beautiful country. he is showing that the country has changed since he has last explored it. he is showing that he has not traveled in a long time. he is showing that america has many unusual sights.
Answer:
He is showing that the country has changed since he has last explored it.
or b
Explanation:
41 1 describe two ways how social media platforms are abused
Answer:
People can spread false information and people can upload explicit, inappropriate pictures.
Explanation:
False information - Sometimes people can abuse social media by spreading rumors about people, or causing mayhem that may not be factually correct. You should look out for this and avoid it by using credible sources and checking the website credentials.
Explicit Images and Videos - People can also abuse social media platforms by posting things that are not fit for the general environment. A good rule is make choices that build others up and support them!
What are the terms in the exponential expression 5e^3x+1+2
Answer:
5e ³ x+1+2(solution) terms are 5e5e ³ x,1,1, 2.
Explanation:
A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them. The number in front of a term is called a coefficient. Does it make more sense?
The ancestral finch founded a new population on one of the hawaiian islands. due to the , allele frequencies of the first small population on one of the islands could have differed from their continental goldfinch-like ancestors. the process of resulted in adaptation and of the island population into a new over time. some of the birds crossed to some of the other islands where they were and evolved into more species occupying different niches.
Answer:
The ancestral finch founded a new population on one of the Hawaiian Islands. Due to the
*founder effect
, allele frequencies of the first small population on one of the islands could have differed from their continental goldfinch-like ancestors. The process of
*evolution
resulted in adaptation and
*natural selection
of the island population into a new
*species
over time. Some of the birds crossed to some of the other islands where they were
*geographically isolated
and evolved into more species occupying different niches.
Explanation:
i'm doing the same assignment but i actually know the answer.
Determine whether the statement is true or false. d dx (tan2(x)) = d dx (sec2(x))
What is the difference between a primary and secondary group brainly
Why did george h.w. bush make a promise not to raise taxes during the 1988 election brainly
The reason why George HW Bush made a promise not to raise taxes was because He wanted to gain an advantage over the Democratic candidate.
What did George HW Bush promise in time of the 1988 election?He was said to have stated or promised that there will be no new taxes as he wanted to have an advantage over the Democratic candidate.
It was said by American presidential candidate George H. W. Bush at the 1988 Republican National Convention when he wanted to accepted his nomination.
See options below
A.
He wanted to gain an advantage over the Democratic candidate.
B.
He wanted to increase the role of the government in the economy.
C.
He wanted to use the revenues to pull the country out of a recession.
D.
He hoped to avoid promising to reform immigration policies.
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Food chains represent oversimplifications of producer-consumer relationships. indicate if the following statements about interactions among trophic levels are true or false in explaining the complexity of these interactions.
Answer:
The statement "Food chains represent oversimplifications of producer-consumer relationships" is true.
Explanation:
Food chains are linear representations of the flow of energy and nutrients through an ecosystem. They typically involve a single pathway of energy transfer from producers (plants) to primary consumers (herbivores) to secondary consumers (carnivores or omnivores) and so on. However, in reality, ecological interactions are much more complex and interconnected.
In natural ecosystems, food webs are more accurate representations of the trophic interactions. Food webs consist of multiple interconnected food chains, showcasing the various feeding relationships and interactions among different species within an ecosystem. They include multiple producers, consumers at different trophic levels, and decomposers, creating a complex network of energy flow.
Food chains can be useful as simple models to understand basic energy flow patterns, but they do not fully capture the intricacies and complexities of the actual interactions in an ecosystem. In contrast, food webs provide a more comprehensive picture of how energy, nutrients, and interactions are shared and exchanged among species, making them more accurate representations of the relationships in an ecosystem.
One possible reason that the revolutionary-era poets used the
Answer:
One possible reason that the Revolutionary-era poets used the iambic meter was to imitate the classical style.
Explanation:
As the Revolutionary-era poets were inspired Classical era, they wrote using the iambic meter, which consists on two syllables where the first one was unstressed, and the one following it was stressed.