Question 1

Red blood cells are placed in a hyperosmotic solution.What will happen to the blood cells?

Accepted Answer

A)  They will shrivel.
B)  They will swell.
C)  Some will swell and some will shrivel.
D)  They will remain unchanged.

Question 2

A solution is 0.0433 m LiF.What is the molarity of the solution if the density is 1.10 g/mL?

Accepted Answer

A)  0.0441 M
B)  0.0390 M
C)  0.0519 M
D)  0.0476 M
E)  0.0417 M

Question 3

A solution is prepared by dissolving 76.3 g NaI in 545 g of water.Determine the mole fraction of NaI if the final volume of the solution is 576 mL.

Accepted Answer

A)  6.04 × 10-3
B)  1.65 × 10-2
C)  1.40 × 10-3
D)  1.32 × 10-2
E)  8.84 × 10-2

Question 4

Identify the gas that is dissolved in carbonated sodas.

Accepted Answer

A)  carbon dioxide
B)  oxygen
C)  nitrogen
D)  carbon monoxide
E)  hydrogen

Question 5

Choose the aqueous solution below with the lowest freezing point.These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.

Accepted Answer

A)  0.075 m NaI
B)  0.075 m (NH4) 3PO4
C)  0.075 m NaBrO4
D)  0.075 m LiCN
E)  0.075 m KNO2

Question 6

What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.250 m solution?

Accepted Answer

A)  2.02 g
B)  4.94 g
C)  1.19 g
D)  8.42 g
E)  1.90 g

Question 7

Determine the freezing point depression of a solution that contains 30.7 g glycerin (C3H8O3,molar mass = 92.09 g/mol) in 376 mL of water.Some possibly useful constants for water are Kf = 1.86°C/m and Kb = 0.512°C/m .

Accepted Answer

A)  0.887°C
B)  1.65°C
C)  3.33°C
D)  4.95°C
E)  0.654°C

Exam 12: Solutions

A solution is prepared by dissolving 76.3 g NaI in 545 g of water.Determine the mole fraction of NaI if the final volume of the solution is 576 mL.

Correct Answer
verified

A solution is 0.0433 m LiF.What is the molarity of the solution if the density is 1.10 g/mL?

Correct Answer
verified

Red blood cells are placed in a hyperosmotic solution.What will happen to the blood cells?

Correct Answer
verified

Choose the aqueous solution below with the lowest freezing point.These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.

Correct Answer
verified

Determine the freezing point depression of a solution that contains 30.7 g glycerin (C₃H₈O₃,molar mass = 92.09 g/mol) in 376 mL of water.Some possibly useful constants for water are K_f = 1.86°C/m and K_b = 0.512°C/m .

Correct Answer
verified

What mass (in g) of NH₃ must be dissolved in 475 g of methanol to make a 0.250 m solution?

Correct Answer
verified

Identify the gas that is dissolved in carbonated sodas.

Correct Answer
verified

Exam 12: Solutions

A solution is prepared by dissolving 76.3 g NaI in 545 g of water.Determine the mole fraction of NaI if the final volume of the solution is 576 mL.

Correct AnswerverifiedShow Answer

A solution is 0.0433 m LiF.What is the molarity of the solution if the density is 1.10 g/mL?

Correct AnswerverifiedShow Answer

Red blood cells are placed in a hyperosmotic solution.What will happen to the blood cells?

Correct AnswerverifiedShow Answer

Choose the aqueous solution below with the lowest freezing point.These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.

Correct AnswerverifiedShow Answer

Determine the freezing point depression of a solution that contains 30.7 g glycerin (C3H8O3,molar mass = 92.09 g/mol) in 376 mL of water.Some possibly useful constants for water are Kf = 1.86°C/m and Kb = 0.512°C/m .

Correct AnswerverifiedShow Answer

What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.250 m solution?

Correct AnswerverifiedShow Answer

Identify the gas that is dissolved in carbonated sodas.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Determine the freezing point depression of a solution that contains 30.7 g glycerin (C₃H₈O₃,molar mass = 92.09 g/mol) in 376 mL of water.Some possibly useful constants for water are K_f = 1.86°C/m and K_b = 0.512°C/m .

Correct Answer
verified

What mass (in g) of NH₃ must be dissolved in 475 g of methanol to make a 0.250 m solution?

Correct Answer
verified

Correct Answer
verified