Question 1

Which of the following molecules can form hydrogen bonds?

Accepted Answer

A) HI 
B) BHS1U1B13S1U1B0 
C) NHS1U1B13S1U1B0 
D) NaH 
E) CHS1U1B14S1U1B0 
A) HI 
B) BHS1U1B13S1U1B0 
C) NHS1U1B13S1U1B0 
D) NaH 
E) CHS1U1B14S1U1B0 C

Question 2

When some of the sugar added to iced tea remains undissolved at the bottom of the glass, the solution is

Accepted Answer

A) saturated. 
B) polar. 
C) dilute. 
D) nonpolar. 
E) unsaturated. 
A) saturated. 
B) polar. 
C) dilute. 
D) nonpolar. 
E) unsaturated. A

Question 3

0.50  mole of NaCl , a strong electrolyte, is added to  1.0 kg of water. The freezing point of the solution will be

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    B

Question 4

Water is a polar solvent and hexane   is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?

Accepted Answer

A)    soluble in hexane 
B)    soluble in water 
C)    soluble in water 
D)  octane, soluble in water 
E)  mineral oil, soluble in water 
A)    soluble in hexane 
B)    soluble in water 
C)    soluble in water 
D)  octane, soluble in water 
E)  mineral oil, soluble in water

Question 5

A substance that carries an electric current when dissolved in water is called a(n)________.

Accepted Answer

The answer of A substance that carries an electric current...

Question 6

NaCl can be classified as a ________.

Accepted Answer

A) liquid 
B) strong electrolyte 
C) gas 
D) nonelectrolyte 
E) weak electrolyte 
A) liquid 
B) strong electrolyte 
C) gas 
D) nonelectrolyte 
E) weak electrolyte

Question 7

According to Henry's law, the solubility of a gas in a liquid

Accepted Answer

A) remains the same as the temperature increases. 
B) decreases as the gas pressure above the liquid increases. 
C) depends on the liquid polarity. 
D) increases as the gas pressure above the liquid increases. 
E) depends on the liquid density. 
A) remains the same as the temperature increases. 
B) decreases as the gas pressure above the liquid increases. 
C) depends on the liquid polarity. 
D) increases as the gas pressure above the liquid increases. 
E) depends on the liquid density.

Question 8

Which one of the following compounds will be insoluble in water?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 9

When KCl dissolves in water,

Accepted Answer

A)  the   ions are attracted to dissolved   ions. 
B)  the   ions are attracted to the partially positive hydrogen atoms of the water molecule. 
C)  the   ions are attracted to the partially negative oxygen atoms of the water molecule. 
D)  the   ions are attracted to the partially negative oxygen atoms of the water molecule. 
E)  the   ions are attracted to   ions on the  \mathrm{KCl}  crystal. 
A)  the   ions are attracted to dissolved   ions. 
B)  the   ions are attracted to the partially positive hydrogen atoms of the water molecule. 
C)  the   ions are attracted to the partially negative oxygen atoms of the water molecule. 
D)  the   ions are attracted to the partially negative oxygen atoms of the water molecule. 
E)  the   ions are attracted to   ions on the  \mathrm{KCl}  crystal.

Question 10

How many grams of   are formed when  25.0 mL of  0.654 M KCl react completely with

Accepted Answer

A) 4.54 g 
B) 22.7 g 
C) 2.27 g 
D) 9.08 g 
E) 1.64 g 
A) 4.54 g 
B) 22.7 g 
C) 2.27 g 
D) 9.08 g 
E) 1.64 g

Question 11

When solutions of  NaCl and   are mixed,

Accepted Answer

A)  a precipitate of  AgCl forms. 
B)  precipitates of   and  AgCl form. 
C)  a precipitate of   forms. 
D)  no precipitate forms. 
E)  a precipitate of   forms. 
A)  a precipitate of  AgCl forms. 
B)  precipitates of   and  AgCl form. 
C)  a precipitate of   forms. 
D)  no precipitate forms. 
E)  a precipitate of   forms.

Question 12

How many mL of  0.234 M KCl solution will react completely with  25.0 mL  of  0.168 M   solution?

Accepted Answer

A)   35.6 mL 
B)   17.9 mL 
C)   34.8 mL 
D)   25.0 mL 
E)   22.5 mL 
A)   35.6 mL 
B)   17.9 mL 
C)   34.8 mL 
D)   25.0 mL 
E)   22.5 mL

Question 13

1.0 mole of NaCl, a strong electrolyte, is added to 1.0 kg of water. The freezing point of the solution will be ________ the freezing point of pure water.

Accepted Answer

A) higher than 
B) lower than 
C) the same as 
A) higher than 
B) lower than 
C) the same as

Question 14

Oil does not dissolve in water because

Accepted Answer

A) oil is nonpolar. 
B) water is saturated. 
C) water is nonpolar. 
D) oil is hydrated. 
E) oil is polar. 
A) oil is nonpolar. 
B) water is saturated. 
C) water is nonpolar. 
D) oil is hydrated. 
E) oil is polar.

Question 15

An increase in the temperature of a solution usually

Accepted Answer

A) increases the boiling point. 
B) decreases the solubility of a solid solute in the solution. 
C) increases the solubility of a solid solute in the solution. 
D) increases the solubility of a gas in the solution. 
E) decreases the solubility of a liquid solute in the solution. 
A) increases the boiling point. 
B) decreases the solubility of a solid solute in the solution. 
C) increases the solubility of a solid solute in the solution. 
D) increases the solubility of a gas in the solution. 
E) decreases the solubility of a liquid solute in the solution.

Question 16

The molarity (M)of a solution refers to

Accepted Answer

A) moles of solute/L of solvent. 
B) grams of solute/100 mL of solution. 
C) grams of solute/L of solution. 
D) moles of solute/L of solution. 
E) moles of solute/100 mL of solution. 
A) moles of solute/L of solvent. 
B) grams of solute/100 mL of solution. 
C) grams of solute/L of solution. 
D) moles of solute/L of solution. 
E) moles of solute/100 mL of solution.

Question 17

Which one of the following compounds will be insoluble in water?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 18

How many equivalents are present in  5.0 g of

Accepted Answer

A)   0.37 Eq 
B)   0.19 Eq 
C)   3 Eq 
D)   15 Eq 
E)   0.56 Eq 
A)   0.37 Eq 
B)   0.19 Eq 
C)   3 Eq 
D)   15 Eq 
E)   0.56 Eq

Question 19

A mixture in which one component settles is called a(n)________.

Accepted Answer

A) nonelectrolyte 
B) solution 
C) colloid 
D) electrolyte 
E) suspension 
A) nonelectrolyte 
B) solution 
C) colloid 
D) electrolyte 
E) suspension

Question 20

What is the molarity of a solution that contains  3.25  moles of   in  250 mL of solution?

Accepted Answer

A)   13.0 M 
B)   2.60 M 
C)   3.25 M 
D)   6.50 M 
E)   0.0130 M 
A)   13.0 M 
B)   2.60 M 
C)   3.25 M 
D)   6.50 M 
E)   0.0130 M

Exam 9: Solutions

Which of the following molecules can form hydrogen bonds?

When some of the sugar added to iced tea remains undissolved at the bottom of the glass, the solution is

0.50 mole of NaCl , a strong electrolyte, is added to 1.0 kg of water. The freezing point of the solution will be

Water is a polar solvent and hexane is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?

A substance that carries an electric current when dissolved in water is called a(n)________.

NaCl can be classified as a ________.

According to Henry's law, the solubility of a gas in a liquid

Which one of the following compounds will be insoluble in water?

When KCl dissolves in water,

How many grams of are formed when 25.0 mL of 0.654 M KCl react completely with

When solutions of NaCl and are mixed,

How many mL of 0.234 M KCl solution will react completely with 25.0 mL of 0.168 M solution?

1.0 mole of NaCl, a strong electrolyte, is added to 1.0 kg of water. The freezing point of the solution will be ________ the freezing point of pure water.

Oil does not dissolve in water because

An increase in the temperature of a solution usually

The molarity (M)of a solution refers to

Which one of the following compounds will be insoluble in water?

How many equivalents are present in 5.0 g of

A mixture in which one component settles is called a(n)________.

What is the molarity of a solution that contains 3.25 moles of in 250 mL of solution?

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