Question 1

Antacids are basic compounds.

Accepted Answer

A) True 
 B)False

Question 2

A metal oxide will form an acid when it is dissolved in water.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is the correct balanced equation for the neutralization of barium hydroxide with hydrochloric acid?

Accepted Answer

A)   Ba(OH) 2 + 2 HCl → BaCl2  + 2 H2O
B)   BaOH2 + 2 HCl → BaCl2 + H2O
C)   Ba(OH) 2 + HCl → BaCl2 + H2O
D)   BaOH + HCl → BaCl + H2O A

Question 4

Sulfuric acid is an excellent dehydrating agent and will remove water from the cells of skin.

Accepted Answer

A) True 
 B)False

Question 5

When nonmetal oxides react with water, the resulting solution is

Accepted Answer

A)   salty.
B)   acidic.
C)   neutral.
D)   basic.

Question 6

Which substance has the lowest pH?

Accepted Answer

A)   urine
B)   lemon juice
C)   unpolluted rainwater
D)   4% NaOH

Question 7

Phosphoric acid is added to many popular beverages to give them a tart flavor. The formula of phosphoric acid is

Accepted Answer

A)   H3PO4.
B)   H4PO3.
C)   H2PO4.
D)   HPO4.

Question 8

A ruptured tank in Anywhere, USA spilled hydrochloric acid. Officials were reported to be "concerned that the acid might mix with sodium hydroxide - caustic soda - in a neighboring tank and form a toxic gas." What toxic gas would be formed?

Accepted Answer

A)   carbon dioxide
B)   chlorine
C)   chlorine dioxide
D)   none

Question 9

A conjugate acid-base pair form a buffer solution.

Accepted Answer

A) True 
 B)False

Question 10

The pH = -log[H+] for a solution. The pOH = -log[OH-] for a solution. The pH and pOH are related, and their sum is equal to 14 (pH + pOH = 14) . If the concentration of a dilute solution of potassium hydroxide is 0.001 M, what is the pH of that solution?

Accepted Answer

A)   7
B)   3
C)   11
D)   2 C

Question 11

Which of the following does NOT contribute to acid rain?

Accepted Answer

A)   coal-burning power plants
B)   lightning
C)   volcanic eruptions
D)   All of the above contribute to acid rain.

Question 12

Hyperacidity means

Accepted Answer

A)   too much acid.
B)   too little acid.
C)   too much antacid.
D)   too much base.

Question 13

The pH of rain collected on a remote island in the Pacific is assumed to be unaffected by human pollution. The pH of the rainwater will be

Accepted Answer

A)   less than 7.
B)   equal to 7.
C)   greater than 7.
D)   0.

Question 14

When added to water, which of the following would produce an acid?

Accepted Answer

A)   Na
B)   BaO
C)   NH3
D)   SO3 D

Question 15

A hydrogen ion, H+, is the same as a(n)

Accepted Answer

A)   hydronium ion.
B)   proton.
C)   electron.
D)   hydrate.

Question 16

Which of the following statements about bases is correct?

Accepted Answer

A)   Bases taste bitter.
B)   Bases feel slippery when wet.
C)   Bases turn litmus blue.
D)   All of these statements are correct.

Question 17

Which is NOT a characteristic of acids?

Accepted Answer

A)   taste bitter
B)   turn litmus red
C)   react with bases to form salts
D)   react with active metals to form H2 gas

Question 18

Which of the following ingredients would NOT be an active ingredient in an antacid?

Accepted Answer

A)   NaBr
B)   Mg(OH) 2
C)   NaHCO3
D)   CaCO3

Question 19

The four basic tastes are all related to acids and bases in some manner. The taste sensation with the least direct, least well understood, and probably most complex relationship between taste response and acid/base properties is

Accepted Answer

A)   bitter.
B)   sour.
C)   salt.
D)   sweet.

Question 20

In what way are the green chemistry production of biodiesel fuel and of soap different?

Accepted Answer

A)   Biodiesel fuels require the addition of acids, while production of soap uses bases.
B)   Biodiesel fuels are converted to methyl esters, while soaps are converted to sodium salts.
C)   Biodiesel fuels produce glycerol, while soap production produced methanol.
D)   Biodiesel fuel decreases the amount of waste produced, while soap production increases the amount of waste.

Exam 7: Acids and Bases

Antacids are basic compounds.

Correct AnswerverifiedShow Answer

A metal oxide will form an acid when it is dissolved in water.

Correct AnswerverifiedShow Answer

Which of the following is the correct balanced equation for the neutralization of barium hydroxide with hydrochloric acid?

Correct AnswerverifiedA

Sulfuric acid is an excellent dehydrating agent and will remove water from the cells of skin.

Correct AnswerverifiedShow Answer

When nonmetal oxides react with water, the resulting solution is

Correct AnswerverifiedShow Answer

Which substance has the lowest pH?

Correct AnswerverifiedShow Answer

Phosphoric acid is added to many popular beverages to give them a tart flavor. The formula of phosphoric acid is

Correct AnswerverifiedShow Answer

A ruptured tank in Anywhere, USA spilled hydrochloric acid. Officials were reported to be "concerned that the acid might mix with sodium hydroxide - caustic soda - in a neighboring tank and form a toxic gas." What toxic gas would be formed?

Correct AnswerverifiedShow Answer

A conjugate acid-base pair form a buffer solution.

Correct AnswerverifiedShow Answer

The pH = -log[H+] for a solution. The pOH = -log[OH-] for a solution. The pH and pOH are related, and their sum is equal to 14 (pH + pOH = 14) . If the concentration of a dilute solution of potassium hydroxide is 0.001 M, what is the pH of that solution?

Correct AnswerverifiedC

Which of the following does NOT contribute to acid rain?

Correct AnswerverifiedShow Answer

Hyperacidity means

Correct AnswerverifiedShow Answer

The pH of rain collected on a remote island in the Pacific is assumed to be unaffected by human pollution. The pH of the rainwater will be

Correct AnswerverifiedShow Answer

When added to water, which of the following would produce an acid?

Correct AnswerverifiedD

A hydrogen ion, H+, is the same as a(n)

Correct AnswerverifiedShow Answer

Which of the following statements about bases is correct?

Correct AnswerverifiedShow Answer

Which is NOT a characteristic of acids?

Correct AnswerverifiedShow Answer

Which of the following ingredients would NOT be an active ingredient in an antacid?

Correct AnswerverifiedShow Answer

The four basic tastes are all related to acids and bases in some manner. The taste sensation with the least direct, least well understood, and probably most complex relationship between taste response and acid/base properties is

Correct AnswerverifiedShow Answer

In what way are the green chemistry production of biodiesel fuel and of soap different?

Correct AnswerverifiedShow Answer

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A

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The pH = -log[H⁺] for a solution. The pOH = -log[OH^-] for a solution. The pH and pOH are related, and their sum is equal to 14 (pH + pOH = 14) . If the concentration of a dilute solution of potassium hydroxide is 0.001 M, what is the pH of that solution?

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C

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D

A hydrogen ion, H⁺, is the same as a(n)

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