Question 1

Which of the following salts would produce a basic solution (pH higher than 7)upon being dissolved in pure, distilled water?

Accepted Answer

A) NaCl 
B) Na2CO3 
C) Mg(NO3)2 
D) NH4Cl 
A) NaCl 
B) Na2CO3 
C) Mg(NO3)2 
D) NH4Cl B

Question 2

Ammonium chloride in water will produce an acidic solution.

Accepted Answer

A) True 
 B)False  True

Question 3

How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl2?

Accepted Answer

A) 5.62 × 10-3 meq 
B) 2.81 meq 
C) 1.12 × 10-2 meq 
D) 1.12 × 101 meq 
A) 5.62 × 10-3 meq 
B) 2.81 meq 
C) 1.12 × 10-2 meq 
D) 1.12 × 101 meq D

Question 4

is a stronger acid than   .

Accepted Answer

A) True 
 B)False

Question 5

What salt would be produced by the reaction of H2SO4 with LiHCO3?

Accepted Answer

A) Li2S 
B) LiSO4 
C) Li2SO4 
D) Li2CO3 
A) Li2S 
B) LiSO4 
C) Li2SO4 
D) Li2CO3

Question 6

In the following reaction, all substances are soluble, and all dissociate except H2O. Identify the spectator ions.  HCl + KOH → KCl + H2O

Accepted Answer

A) H+ and OH −  
B) K+ and Cl −  
C) H+ and K+ 
D) Cl −  and OH −  
A) H+ and OH −  
B) K+ and Cl −  
C) H+ and K+ 
D) Cl −  and OH −

Question 7

The buffer capacity is the amount of ____ that can be absorbed without causing significant changes in pH.

Accepted Answer

A) acid 
B) base 
C) neither acid or base 
D) either acid or base 
A) acid 
B) base 
C) neither acid or base 
D) either acid or base

Question 8

A solution for which [OH − ] = 3.0 × 10 − 10 is classified as _____ .

Accepted Answer

A) acidic 
B) basic 
C) neutral 
D) More than one response is correct. 
A) acidic 
B) basic 
C) neutral 
D) More than one response is correct.

Question 9

Which of the following is present in pure water?

Accepted Answer

A) H3O+ 
B) OH −  
C) H2O 
D) all of them 
A) H3O+ 
B) OH −  
C) H2O 
D) all of them

Question 10

Which salt shifts the pH when dissolved in water?

Accepted Answer

A) KCl 
B) Al(NO3)3 
C) NaCl 
D) NaNO3 
A) KCl 
B) Al(NO3)3 
C) NaCl 
D) NaNO3

Question 11

What would be the pH of a solution of NH4Cl in pure water?

Accepted Answer

A) higher than 7 
B) lower than 7 
C) equal to 7 
D) can't be predicted 
A) higher than 7 
B) lower than 7 
C) equal to 7 
D) can't be predicted

Question 12

The pH of a solution of baking soda, NaHCO3, would be expected to be above 7.

Accepted Answer

A) True 
 B)False

Question 13

A water solution is found to have a molar OH −  concentration of 3.2 × 10 − 5. The solution would be classified as _____ .

Accepted Answer

A) acidic 
B) basic 
C) neutral 
D) can't be classified 
A) acidic 
B) basic 
C) neutral 
D) can't be classified

Question 14

It has been proposed that atmospheric CO2 could be reduced by absorption in to the Earth's oceans.  Which of the following reactions would be involved?

Accepted Answer

A) CO2 (g)+ H2O (l)   H2CO3 (aq) 
B) H2CO3 (aq)   H+ (aq)+ HCO3- (aq) 
C) HCO3- (aq)     H+ (aq)+ CO32- (aq) 
D) all of the above 
A) CO2 (g)+ H2O (l)   H2CO3 (aq) 
B) H2CO3 (aq)   H+ (aq)+ HCO3- (aq) 
C) HCO3- (aq)     H+ (aq)+ CO32- (aq) 
D) all of the above

Question 15

The salt of a strong acid with a strong base could behave as a buffer.

Accepted Answer

A) True 
 B)False

Question 16

Citrus fruits are high in both citric acid and ascorbic acid (Vitamin C).  As such, eating or drinking large amounts of citrus fruits helps strengthen teeth.

Accepted Answer

A) True 
 B)False

Question 17

Many cleaning agents contain bases because bases react with _____ .

Accepted Answer

A) fats or oils 
B) glass 
C) salts 
D) More than one response is correct. 
A) fats or oils 
B) glass 
C) salts 
D) More than one response is correct.

Question 18

A higher pH corresponds to _____ .

Accepted Answer

A) a higher [H+] 
B) a lower [H+] 
C) no change in [OH+] 
D) a lower [OH − ] 
A) a higher [H+] 
B) a lower [H+] 
C) no change in [OH+] 
D) a lower [OH − ]

Question 19

​ Identify a true statement of acids.

Accepted Answer

A) Acids undergo characteristic double-replacement reactions with solid oxides. 
B) Acids undergo characteristic double-replacement reactions with oxalates. 
C) Acids undergo characteristic single-replacement reactions with solid oxides. 
D) Acids undergo characteristic single-replacement reactions with carbonates. 
A) Acids undergo characteristic double-replacement reactions with solid oxides. 
B) Acids undergo characteristic double-replacement reactions with oxalates. 
C) Acids undergo characteristic single-replacement reactions with solid oxides. 
D) Acids undergo characteristic single-replacement reactions with carbonates.

Question 20

According to the Brønsted Theory, a conjugate pair is composed of a Brønsted acid and a Brønsted base.

Accepted Answer

A) True 
 B)False

Exam 9: Acids, Bases, and Salts

Which of the following salts would produce a basic solution (pH higher than 7)upon being dissolved in pure, distilled water?

Ammonium chloride in water will produce an acidic solution.

How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl2?

is a stronger acid than .

What salt would be produced by the reaction of H2SO4 with LiHCO3?

In the following reaction, all substances are soluble, and all dissociate except H2O. Identify the spectator ions. HCl + KOH → KCl + H2O

The buffer capacity is the amount of ____ that can be absorbed without causing significant changes in pH.

A solution for which [OH − ] = 3.0 × 10 − 10 is classified as _____ .

Which of the following is present in pure water?

Which salt shifts the pH when dissolved in water?

What would be the pH of a solution of NH4Cl in pure water?

The pH of a solution of baking soda, NaHCO3, would be expected to be above 7.

A water solution is found to have a molar OH − concentration of 3.2 × 10 − 5. The solution would be classified as _____ .

It has been proposed that atmospheric CO2 could be reduced by absorption in to the Earth's oceans. Which of the following reactions would be involved?

The salt of a strong acid with a strong base could behave as a buffer.

Citrus fruits are high in both citric acid and ascorbic acid (Vitamin C). As such, eating or drinking large amounts of citrus fruits helps strengthen teeth.

Many cleaning agents contain bases because bases react with _____ .

A higher pH corresponds to _____ .

​ Identify a true statement of acids.

According to the Brønsted Theory, a conjugate pair is composed of a Brønsted acid and a Brønsted base.

Matter, Measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl₂?

What salt would be produced by the reaction of H₂SO₄ with LiHCO₃?

In the following reaction, all substances are soluble, and all dissociate except H₂O. Identify the spectator ions. HCl + KOH → KCl + H₂O

A solution for which [OH⁻] = 3.0 × 10^{− 10} is classified as _____ .

What would be the pH of a solution of NH₄Cl in pure water?

The pH of a solution of baking soda, NaHCO₃, would be expected to be above 7.

A water solution is found to have a molar OH⁻ concentration of 3.2 × 10^{− 5}. The solution would be classified as _____ .

It has been proposed that atmospheric CO₂ could be reduced by absorption in to the Earth's oceans. Which of the following reactions would be involved?

Identify a true statement of acids.