Question 1

Methanol, CH₃OH, can be classified as a ________.

Accepted Answer

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

Question 2

A red blood cell will undergo hemolysis in

Accepted Answer

A) water. 
B) 0.9% NaCl. 
C) 5% glucose. 
D) 5% NaCl. 
E) 10% glucose. 
A) water. 
B) 0.9% NaCl. 
C) 5% glucose. 
D) 5% NaCl. 
E) 10% glucose.

Question 3

When KCl dissolves in water

Accepted Answer

A) the Cl- ions are attracted to dissolved K+ ions. 
B) the Cl- ions are attracted to the partially negative oxygen atoms of the water molecule. 
C) the K+ ions are attracted to Cl- ions on the KCl crystal. 
D) the K+ ions are attracted to the partially negative oxygen atoms of the water molecule. 
E) the K+ ions are attracted to the partially positive hydrogen atoms of the water molecule. 
A) the Cl- ions are attracted to dissolved K+ ions. 
B) the Cl- ions are attracted to the partially negative oxygen atoms of the water molecule. 
C) the K+ ions are attracted to Cl- ions on the KCl crystal. 
D) the K+ ions are attracted to the partially negative oxygen atoms of the water molecule. 
E) the K+ ions are attracted to the partially positive hydrogen atoms of the water molecule.

Question 4

When solutions of NaCl and AgNO₃ are mixed,

Accepted Answer

A) a precipitate of AgCl forms. 
B) a precipitate of NaNO₃
Forms. 
C) no precipitate forms. 
D) precipitate of NaNO₃
And AgCl form. 
E) a precipitate of AgCl₂
Forms. 
A) a precipitate of AgCl forms. 
B) a precipitate of NaNO₃
Forms. 
C) no precipitate forms. 
D) precipitate of NaNO₃
And AgCl form. 
E) a precipitate of AgCl₂
Forms.

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

What is the molarity of a solution that contains 17 g of NH₃ in 0.50 L of solution?

Accepted Answer

A) 34 M 
B) 2.0 M 
C) 0.50 M 
D) 0.029 M 
E) 1.0 M 
A) 34 M 
B) 2.0 M 
C) 0.50 M 
D) 0.029 M 
E) 1.0 M

Question 7

Which solution is isotonic to a red blood cell?

Accepted Answer

A) water 
B) 0.5% NaCl 
C) 2% glucose 
D) 0.9% NaCl 
E) 10% glucose 
A) water 
B) 0.5% NaCl 
C) 2% glucose 
D) 0.9% NaCl 
E) 10% glucose

Question 8

Substances whose particles in solution scatter light and pass through filters but cannot pass through semipermeable membranes are called ________.

Accepted Answer

The answer of Substances whose particles in solution scatter light...

Question 9

Use the reaction: 2AgNO₃(aq) + H2SO₄(aq) → Ag2SO₄(s) + 2H2O(l). What volume of 0.123 M AgNO₃(aq) is needed to form 0.657 g of Ag2SO₄(s)?

Accepted Answer

A) 34.2 L 
B) 17.1 mL 
C) 34.3 mL 
D) 10.7 mL 
E) 53.4 mL 
A) 34.2 L 
B) 17.1 mL 
C) 34.3 mL 
D) 10.7 mL 
E) 53.4 mL

Question 10

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

Accepted Answer

A) AgBr 
B) Cu(OH)₂ 
C) NH₄Cl 
D) CaCO₃ 
E) PbS 
A) AgBr 
B) Cu(OH)₂ 
C) NH₄Cl 
D) CaCO₃ 
E) PbS

Question 11

Water is a polar solvent and hexane (C₆H₁₄) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?

Accepted Answer

A) mineral oil, soluble in water 
B) CaCl₂ , soluble in hexane 
C) NaHCO₃, soluble in water 
D)  CCl₄, soluble in water 
E) octane, soluble in water 
A) mineral oil, soluble in water 
B) CaCl₂ , soluble in hexane 
C) NaHCO₃, soluble in water 
D)  CCl₄, soluble in water 
E) octane, soluble in water

Question 12

An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?

Accepted Answer

A) albumin, inside 
B) starch outside 
C) albumin inside and outside 
D) water inside only 
E) starch inside and outside 
A) albumin, inside 
B) starch outside 
C) albumin inside and outside 
D) water inside only 
E) starch inside and outside

Question 13

1.0 mole of NaCl 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

In the following equation, ________ will form a precipitate. 
NaCl + AgNO₃ → AgCl + NaNO₃

Accepted Answer

The answer of In the following equation, ________ will form...

Question 15

A solution of sodium carbonate, Na2CO₃ , that has a molarity of 0.0100 M contains ________ equivalents of carbonate per liter of the solution.

Accepted Answer

Question 16

What is the osmolarity of a solution made by dissolving 0.50 mole of the strong electrolyte CaCl₂ in 1.0 L of solution?

Accepted Answer

A) 0.50 Osm 
B) 1.0 Osm 
C) 1.5 Osm 
D) 2.0 Osm 
E) 0.0 Osm 
A) 0.50 Osm 
B) 1.0 Osm 
C) 1.5 Osm 
D) 2.0 Osm 
E) 0.0 Osm

Question 17

If 100. mL of water is added to 25 mL of 5.0 M NaCl, the final concentration is ________.

Accepted Answer

A) 25 M 
B) 1.0 M 
C) 5.0 M 
D) 2.0 M 
E) 1.3 M 
A) 25 M 
B) 1.0 M 
C) 5.0 M 
D) 2.0 M 
E) 1.3 M

Question 18

An increase in the temperature of a solution usually

Accepted Answer

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

Question 19

A red blood cell will undergo crenation in

Accepted Answer

A) water. 
B) 0.5% NaCl. 
C) 3% glucose. 
D) 5% glucose. 
E) 7% NaCl. 
A) water. 
B) 0.5% NaCl. 
C) 3% glucose. 
D) 5% glucose. 
E) 7% NaCl.

Question 20

How many grams of PbCl₂ are formed when 25.0 mL of 0.654 M KCl react with Pb(NO₃)₂ ? 
2KCl(aq) + Pb(NO₃) 2(aq) → 2KNO₃(aq) + PbCl₂(s)

Accepted Answer

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

Exam 9: Solutions

Methanol, CH₃OH, can be classified as a ________.

A red blood cell will undergo hemolysis in

When KCl dissolves in water

When solutions of NaCl and AgNO₃ are mixed,

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

What is the molarity of a solution that contains 17 g of NH₃ in 0.50 L of solution?

Which solution is isotonic to a red blood cell?

Substances whose particles in solution scatter light and pass through filters but cannot pass through semipermeable membranes are called ________.

Use the reaction: 2AgNO₃(aq) + H2SO₄(aq) → Ag2SO₄(s) + 2H2O(l). What volume of 0.123 M AgNO₃(aq) is needed to form 0.657 g of Ag2SO₄(s)?

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

Water is a polar solvent and hexane (C₆H₁₄) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?

An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?

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

In the following equation, ________ will form a precipitate. NaCl + AgNO₃ → AgCl + NaNO₃

A solution of sodium carbonate, Na2CO₃ , that has a molarity of 0.0100 M contains ________ equivalents of carbonate per liter of the solution.

What is the osmolarity of a solution made by dissolving 0.50 mole of the strong electrolyte CaCl₂ in 1.0 L of solution?

If 100. mL of water is added to 25 mL of 5.0 M NaCl, the final concentration is ________.

An increase in the temperature of a solution usually

A red blood cell will undergo crenation in

How many grams of PbCl₂ are formed when 25.0 mL of 0.654 M KCl react with Pb(NO₃)₂ ? 2KCl(aq) + Pb(NO₃) 2(aq) → 2KNO₃(aq) + PbCl₂(s)

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Use the reaction: 2AgNO₃(aq) + H₂SO₄(aq) → Ag₂SO₄(s) + 2H₂O(l). What volume of 0.123 M AgNO₃(aq) is needed to form 0.657 g of Ag₂SO₄(s)?

A solution of sodium carbonate, Na₂CO₃ , that has a molarity of 0.0100 M contains ________ equivalents of carbonate per liter of the solution.