Question 1

Magnesium carbonate, MgCO3 , contains one carbonate ions. How many moles of magnesium carbonate would be required to completely neutralize 0.100 mol of the hydrochloric acid, HCl?

Accepted Answer

A)   0.050 mol
B)   0.100 mol
C)   0.200 mol
D)   1.00 mol
E)   2.00 mol

Question 2

Which of the following acids is the conjugate base of the bisulfate ion, HSO4- ?

Accepted Answer

A)   HSO3-
B)   SO42-
C)   SO3s
D)   H2SO4
E)   None of the above.

Question 3

Acidic materials can be identified by which of the following test outcomes:

Accepted Answer

A)   They react with metals.
B)   They feel slippery.
C)   They may taste bitter.
D)   They turn litmus paper red.
E)   All of the above.

Question 4

Which of the following are the most likely side effects of ocean acidification?

Accepted Answer

A)   a pH less than 7.0 in the ocean
B)   more metal salts altering the ocean chemistry
C)   dissolution of the shells of marine organisms
D)   Both a & b
E)   All of the above.

Question 5

You accidentally forget to label a sample bottle with the correct pH. You decide to do a quick litmus test. The litmus paper turns blue. Which of the following pH values could your sample be?

Accepted Answer

A)   pH = 3.0
B)   pH = 5.0
C)   pH = 7.0
D)   pH = 9.0
E)   None of the above.

Question 6

Which of the following would you expect to turn litmus paper blue:

Accepted Answer

A)   chalk
B)   baking soda
C)   oven cleaner
D)   all of the above
E)   none of the above

Question 7

How would you describe the behavior of water act under the following conditions: in the presence of a base.

Accepted Answer

A)   Water is neutral and is unreactive.
B)   Water can split into two new molecules.
C)   Water will donate H+ ions.
D)   Water will form OH- ions.
E)   all of the above.

Question 8

Which of the following statements about basic water is true?

Accepted Answer

A)   Base has no effect on the H2O molecules.
B)   The solution contains a larger number of OH- ions than H3O+ ions.
C)   The solution contains a larger number of H3O+ ions than OH- ions.
D)   The solution contains an equal number of H3O+ ions and OH- ions.
E)   none of the above.

Question 9

Basic materials can be identified by which of the following test outcomes:

Accepted Answer

A)   They form salts in the presence of acids.
B)   They may feel slippery.
C)   They may taste bitter.
D)   They turn litmus paper blue.
E)   All of the above.

Question 10

Acid rain can harm soil chemistry by ________.

Accepted Answer

A)   dissolving and leaching beneficial minerals
B)   releasing harmful ions that are normally undissolved
C)   removing beneficial hydroxide ions
D)   Both a & b
E)   All of the above.

Question 11

A number of poets and famous quotations reference 'ashes in the mouth' as a way of describing something unpleasant, or bitter. What does this tell us about ashes?

Accepted Answer

A)   They are acidic.
B)   They are basic.
C)   They are salts.
D)   They are metals.
E)   There is not enough information provided.

Question 12

Which of the following is a trait of buffer:

Accepted Answer

A)   adding a strong acid lowers the pH significantly
B)   adding a strong acid raises the pH significantly
C)   adding a strong acid doesn't significantly change the pH
D)   Both a & c
E)   None of the above.

Question 13

Which of the following pH values would correspond to a solution with an OH- concentration of 1.0 x 10-9?

Accepted Answer

A)   pH = 3.0
B)   pH = 5.0
C)   pH = 7.0
D)   pH = 9.0
E)   None of the above.

Question 14

Many strong acids share a common feature that led early chemist to incorrectly identify this as " a single characteristic " of all acids: What is this feature?

Accepted Answer

A)   They would smoke when exposed to air.
B)   They were formed from 'burning' metals.
C)   They contained halogens.
D)   They contained oxygen.
E)   None of the above

Question 15

An unknown material has a pH of 8.0 and its concentration is found to be 0.00100 M. What can be said about the solution?

Accepted Answer

A)   It contains a strong acid.
B)   It contains a weak acid.
C)   It contains a weak base.
D)   It contains a strong base.
E)   There is not enough information available to make an assessment.

Question 16

Which of the following would you expect to turn litmus paper red:

Accepted Answer

A)   saliva
B)   baking soda
C)   grapefruit juice
D)   sea salt
E)   none of the above

Question 17

Which of the following acids is the conjugate acid of the bisulfate ion, HSO4- ?

Accepted Answer

A)   HSO3-
B)   SO42-
C)   SO32-
D)   H2SO4
E)   None of the above.

Question 18

Which of the following is a trait of an unbuffered solution?

Accepted Answer

A)   adding a strong acid lowers the pH significantly
B)   adding a strong acid raises the pH significantly
C)   adding a strong acid doesn't significantly change the pH
D)   Both a & c
E)   None of the above.

Question 19

What is the major source of carbonic acid found in naturally occurring waters?

Accepted Answer

A)   metal carbonates
B)   carbon dioxide
C)   nitric acid
D)   sulfur impurities in fossil fuels
E)   Both c and d

Question 20

Which of the following would you expect to turn litmus paper red:

Accepted Answer

A)   saliva
B)   blood
C)   tears
D)   gastric juices
E)   none of the above

Exam 8: Acid and Bases

How would you describe the behavior of water act under the following conditions: in the presence of a base.

Correct AnswerverifiedShow Answer

Which of the following pH values would correspond to a solution with an OH- concentration of 1.0 x 10-9?

Correct AnswerverifiedShow Answer

An unknown material has a pH of 8.0 and its concentration is found to be 0.00100 M. What can be said about the solution?

Correct AnswerverifiedShow Answer

Basic materials can be identified by which of the following test outcomes:

Correct AnswerverifiedShow Answer

Acid rain can harm soil chemistry by ________.

Correct AnswerverifiedShow Answer

Which of the following is a trait of buffer:

Correct AnswerverifiedShow Answer

Which of the following acids is the conjugate base of the bisulfate ion, HSO4- ?

Correct AnswerverifiedShow Answer

Which of the following would you expect to turn litmus paper red:

Correct AnswerverifiedShow Answer

Which of the following would you expect to turn litmus paper blue:

Correct AnswerverifiedShow Answer

Magnesium carbonate, MgCO3 , contains one carbonate ions. How many moles of magnesium carbonate would be required to completely neutralize 0.100 mol of the hydrochloric acid, HCl?

Correct AnswerverifiedShow Answer

You accidentally forget to label a sample bottle with the correct pH. You decide to do a quick litmus test. The litmus paper turns blue. Which of the following pH values could your sample be?

Correct AnswerverifiedShow Answer

Which of the following are the most likely side effects of ocean acidification?

Correct AnswerverifiedShow Answer

A number of poets and famous quotations reference 'ashes in the mouth' as a way of describing something unpleasant, or bitter. What does this tell us about ashes?

Correct AnswerverifiedShow Answer

Which of the following would you expect to turn litmus paper red:

Correct AnswerverifiedShow Answer

Which of the following is a trait of an unbuffered solution?

Correct AnswerverifiedShow Answer

Which of the following statements about basic water is true?

Correct AnswerverifiedShow Answer

Many strong acids share a common feature that led early chemist to incorrectly identify this as " a single characteristic " of all acids: What is this feature?

Correct AnswerverifiedShow Answer

Acidic materials can be identified by which of the following test outcomes:

Correct AnswerverifiedShow Answer

Which of the following acids is the conjugate acid of the bisulfate ion, HSO4- ?

Correct AnswerverifiedShow Answer

What is the major source of carbonic acid found in naturally occurring waters?

Correct AnswerverifiedShow Answer

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Which of the following pH values would correspond to a solution with an OH^-concentration of 1.0 x 10^-9?

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Which of the following acids is the conjugate base of the bisulfate ion, HSO₄^- ?

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Magnesium carbonate, MgCO₃ , contains one carbonate ions. How many moles of magnesium carbonate would be required to completely neutralize 0.100 mol of the hydrochloric acid, HCl?

Correct Answer
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Which of the following acids is the conjugate acid of the bisulfate ion, HSO₄^- ?

Correct Answer
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Correct Answer
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