Question 1

What is the pH of a 0.0525 M HCl solution?

Accepted Answer

A)  5.25 
B)  0.0525 
C)  1.28 
D)  3.00 
A)  5.25 
B)  0.0525 
C)  1.28 
D)  3.00 C

Question 2

An acid ion pair such as H2CO3 and HCO3- qualifies as a

Accepted Answer

A)  strong acid-strong base pair 
B)  buffer system 
C)  substitute for hemoglobin 
D)  acid -base pair 
A)  strong acid-strong base pair 
B)  buffer system 
C)  substitute for hemoglobin 
D)  acid -base pair B

Question 3

Which is the weak acid?

Accepted Answer

A)  HCl 
B)  H2SO4 
C)  HNO3 
D)  HC2H3O2 
A)  HCl 
B)  H2SO4 
C)  HNO3 
D)  HC2H3O2 D

Question 4

OH- is the

Accepted Answer

A)  hydroxide ion 
B)  hydrogen ion 
C)  oxygen hydride 
D)  hydronium ion 
A)  hydroxide ion 
B)  hydrogen ion 
C)  oxygen hydride 
D)  hydronium ion

Question 5

Which pair would make a good buffer?

Accepted Answer

A)  H+/OH- 
B)  Na+ /Cl- 
C)  HPO42- /PO43- 
D)  Na+ /OH- 
A)  H+/OH- 
B)  Na+ /Cl- 
C)  HPO42- /PO43- 
D)  Na+ /OH-

Question 6

Which is an acidic substance?

Accepted Answer

A)  household ammonia 
B)  soap 
C)  aspirin 
D)  oven cleaner 
A)  household ammonia 
B)  soap 
C)  aspirin 
D)  oven cleaner

Question 7

The formula of a salt formed from Ca2+ and PO43- ions is

Accepted Answer

A)  CaPO4 
B)  Ca2(PO4)3 
C)  Ca3(PO4)2 
D)  Ca3P2O4 
A)  CaPO4 
B)  Ca2(PO4)3 
C)  Ca3(PO4)2 
D)  Ca3P2O4

Question 8

What volume (in liters) of 1 M NaOH contains 40 g sodium hydroxide?

Accepted Answer

A)  100 L 
B)  1 L 
C)  10 L 
D)  1000 L 
A)  100 L 
B)  1 L 
C)  10 L 
D)  1000 L

Question 9

Which equation represents the neutralization of acidic gastric fluid?

Accepted Answer

A)  2 HNO3(aq) + Mg(OH)2 (aq) $\rightarrow$ Mg(NO3)2(aq) + 2 H2O 
B)  H+(aq) + OH+(aq) $\rightarrow$  H2O 
C)  2 HCl(aq) + Mg(OH)2 (aq) $\rightarrow$  2 H2O + MgCl2(aq) 
D)  NaOH + H2O $\rightarrow$ Na+(aq) + OH- (aq) 
A)  2 HNO3(aq) + Mg(OH)2 (aq) $\rightarrow$ Mg(NO3)2(aq) + 2 H2O 
B)  H+(aq) + OH+(aq) $\rightarrow$  H2O 
C)  2 HCl(aq) + Mg(OH)2 (aq) $\rightarrow$  2 H2O + MgCl2(aq) 
D)  NaOH + H2O $\rightarrow$ Na+(aq) + OH- (aq)

Question 10

Which of the following is a property of acids?

Accepted Answer

A)  turn red litmus blue 
B)  have pH below 7 
C)  feel slippery to the touch 
D)  neutralize acids 
A)  turn red litmus blue 
B)  have pH below 7 
C)  feel slippery to the touch 
D)  neutralize acids

Question 11

All aqueous solutions of electrolytes must by definition

Accepted Answer

A)  be acids 
B)  be neutral 
C)  contain no ions 
D)  conduct electricity 
A)  be acids 
B)  be neutral 
C)  contain no ions 
D)  conduct electricity

Question 12

What is the concentration difference between pH = 10 and pH = 7?

Accepted Answer

A)  100 
B)  0.001 
C)  3 
D)  1000 
A)  100 
B)  0.001 
C)  3 
D)  1000

Question 13

What is the hydronium concentration with pH = 9.5?

Accepted Answer

A)  3.16 * 10-10 
B)  9.50*10-10 
C)  9.15 
D)  3.16 * 1010 
A)  3.16 * 10-10 
B)  9.50*10-10 
C)  9.15 
D)  3.16 * 1010

Question 14

Which of the following is true about a solution with pH = 5?

Accepted Answer

A)  the solution is basic 
B)  the OH- concentration > H+ concentration 
C)  the solution is acidic 
D)  both a and b 
A)  the solution is basic 
B)  the OH- concentration > H+ concentration 
C)  the solution is acidic 
D)  both a and b

Question 15

How many acidic hydrogen atoms are in the molecule of acetic acid, CH3COOH?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
A)  one 
B)  two 
C)  three 
D)  four

Question 16

Which of the following indicates a basic solution?

Accepted Answer

A)  pH = 7 
B)  pH < 7 
C)  pH = 11 
D)  pH = 0 
A)  pH = 7 
B)  pH < 7 
C)  pH = 11 
D)  pH = 0

Question 17

Carbonic acid, H2CO3(aq) is present in

Accepted Answer

A)  eye drops 
B)  milk 
C)  carbonated beverages 
D)  vinegar 
A)  eye drops 
B)  milk 
C)  carbonated beverages 
D)  vinegar

Question 18

A solution with pH = 4 has

Accepted Answer

A)  relatively high concentration of OH- 
B)  relatively low concentration of H3O+ 
C)  zero concentration of OH- 
D)  relatively high concentration of H3O+ 
A)  relatively high concentration of OH- 
B)  relatively low concentration of H3O+ 
C)  zero concentration of OH- 
D)  relatively high concentration of H3O+

Question 19

Which reactant substance is the base, in the following reaction, NH3(g) + H2O( l) $\rightarrow$  NH4+(aq) + OH-(aq) ?

Accepted Answer

A)  OH- 
B)  NH4+ 
C)  H2O 
D)  NH3 
A)  OH- 
B)  NH4+ 
C)  H2O 
D)  NH3

Question 20

Which of the following is a strong base?

Accepted Answer

A)  NH3 
B)  NaOH 
C)  KOH 
D)  both b and c 
A)  NH3 
B)  NaOH 
C)  KOH 
D)  both b and c

What is the pH of a 0.0525 M HCl solution?

An acid ion pair such as H₂CO₃ and HCO₃^- qualifies as a

Which is the weak acid?

OH- is the

Which pair would make a good buffer?

Which is an acidic substance?

The formula of a salt formed from Ca²⁺ and PO₄^3- ions is

What volume (in liters) of 1 M NaOH contains 40 g sodium hydroxide?

Which equation represents the neutralization of acidic gastric fluid?

Which of the following is a property of acids?

All aqueous solutions of electrolytes must by definition

What is the concentration difference between pH = 10 and pH = 7?

What is the hydronium concentration with pH = 9.5?

Which of the following is true about a solution with pH = 5?

How many acidic hydrogen atoms are in the molecule of acetic acid, CH3COOH?

Which of the following indicates a basic solution?

Carbonic acid, H₂CO₃(aq) is present in

A solution with pH = 4 has

Which reactant substance is the base, in the following reaction, NH₃(g) + H₂O( l) $\rightarrow$ NH₄⁺(aq) + OH^-(aq) ?

Which of the following is a strong base?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Oxidation-Reduction Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

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Exam 9: Acid-Base Reactions

What is the pH of a 0.0525 M HCl solution?

An acid ion pair such as H2CO3 and HCO3- qualifies as a

Which is the weak acid?

OH- is the

Which pair would make a good buffer?

Which is an acidic substance?

The formula of a salt formed from Ca2+ and PO43- ions is

What volume (in liters) of 1 M NaOH contains 40 g sodium hydroxide?

Which equation represents the neutralization of acidic gastric fluid?

Which of the following is a property of acids?

All aqueous solutions of electrolytes must by definition

What is the concentration difference between pH = 10 and pH = 7?

What is the hydronium concentration with pH = 9.5?

Which of the following is true about a solution with pH = 5?

How many acidic hydrogen atoms are in the molecule of acetic acid, CH3COOH?

Which of the following indicates a basic solution?

Carbonic acid, H2CO3(aq) is present in

A solution with pH = 4 has

Which reactant substance is the base, in the following reaction, NH3(g) + H2O( l) →\rightarrow→ NH4+(aq) + OH-(aq) ?

Which of the following is a strong base?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Oxidation-Reduction Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Filters

An acid ion pair such as H₂CO₃ and HCO₃^- qualifies as a

The formula of a salt formed from Ca²⁺ and PO₄^3- ions is

Carbonic acid, H₂CO₃(aq) is present in

Which reactant substance is the base, in the following reaction, NH₃(g) + H₂O( l) $\rightarrow$ NH₄⁺(aq) + OH^-(aq) ?