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?

Answers

Answer 1

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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This statement is true

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the first person is correct

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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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Even the toughest people have breaking points. Is this when I saw the name dally, is it talking about the outsiders?

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This question aims to complete sentences with nouns in the Spanish language. In this way, the sentences can be rewritten as:

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Therefore, this is an activity that helps to establish vocabulary in Spanish, being positive for learning a new language.

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What is the difference between a primary and secondary group brainly

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primary school is grades k-6 (or k-5 in some cases) and secondary school is grades 7-12 (or 6-12 in some cases).

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.

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Answer: B

Explanation:

Answer:

He is showing that the country has changed since he has last explored it.

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Explanation:

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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

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The complete sentence in Spanish is:

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We need to complete the sentence:

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And the options (and the translations) are:

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Answer:

D. La ambulancia

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Answer:

The ancestral finch founded a new population on one of the Hawaiian Islands. Due to the

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An example of remote interior angles on the exterior angle is given in the images attached.

What Is a Remote Interior Angle?

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Note that a remote interior angles are known to be the two angles that are said to be inside the triangle and thus it is often opposite the exterior angle (see image)

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Answer:

One possible reason that the Revolutionary-era poets used the iambic meter was to imitate the classical style.

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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.

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The function that is continuous at x = 18 is:

y = (x - 18)/x

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We need to see which function has no problems when x = 18.

For example, the first one:

y = (x - 18)/x

When x = 18, we have:

y = (18 - 18)/18 = 0

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When, for the second option, we have (x - 18) on the denominator, and then when x = 18 the denominator becomes 0, so that function is not continuous at x = 18.

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Answer:

People can spread false information and people can upload explicit, inappropriate pictures.

Explanation:

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It should be “Mom or I can pick you up near the soccer field when you’re done.”

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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.

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Answer:

B. "rigidly fixed"

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theres no other option

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Answers

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.

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Answer:

b.  because he is writing an article about a new procedure that the hospital is using

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i just took the test and said the answer was b

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Answer:

1, 2, 5, 6

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1, 2, 5, 6

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Answer:

D

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"in every free government, the people must give their assent to the laws by which they are governed. this is the true criterion between a free government and an arbitrary one. the former are ruled by the will of the whole, expressed in any manner they may agree upon; the latter by the will of one, or a few. if the people are to give their assent to the laws, by persons chosen and appointed by them, the manner of the choice and the number chosen, must be such, as to possess, be disposed, and consequently qualified to declare the sentiments of the people; for if they do not know, or are not disposed to speak the sentiments of the people, the people do not govern, but the sovereignty is in a few. now, in a large extended country, it is impossible to have a representation, possessing the sentiments, and of integrity, to declare the minds of the people, without having it so numerous and unwieldy, as to be subject in great measure to the inconveniency of a democratic government…." brutus 1 which of the following statements would the author of the passage most likely agree with?

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Answer:

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Explanation:

Water in the surface zone of the ocean is for the most part

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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:

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Answers

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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