Question 1

What is the minimum volume of a 3.88 M NaOH solution needed to make 150.0 mL of a 0.800 M NaOH solution?

Accepted Answer

A)   42.9 mL
B)   375 mL
C)    mL
D)   15.5 mL
E)   30.9 mL

Question 2

You have 100.0 mL of a 0.2500 M solution of NaCl sitting in a beaker. After several days you test the solution and find that it is now 0.4142M. How much water must have evaporated?

Accepted Answer

A)   60.4 mL
B)   39.6 mL
C)   16.4 mL
D)   100.0 mL
E)   The concentration will not change because of evaporation.

Question 3

You have 25.00 mL of a 0.1000 M sugar solution. How much water must be added to make a 0.01809M solution?

Accepted Answer

A)   138.2 mL
B)   4.52 mL
C)   20.5 mL
D)   113.2 mL
E)   45.2 mL

Question 4

What volume of a 0.176 M Na2S solution contains 1.01 g of Na+ ions?

Accepted Answer

A)   0.250 L
B)   8.01 L
C)   4.01 L
D)   0.425 L
E)   0.125 L

Question 5

What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved?

Accepted Answer

A)   dilute
B)   saturated
C)   supersaturated
D)   concentrated
E)   unsaturated

Question 6

In soda pop, CO2(g)  is a ______________, and water is the ______________.

Accepted Answer

A)   solute; solvent
B)   solvent; solute
C)   solution; solute
D)   solute; solution
E)   solvent; solution

Question 7

If you mix 20.0 mL of a 3.00 M sugar solution with 30.0 mL of a 5.57 M sugar solution, you will end up with a sugar solution of ________.

Accepted Answer

A)   4.29 M
B)   0.171 M
C)   7.57 M
D)   4.54 M
E)   11.36 M

Question 8

What mass of solute is contained in 417 mL of a 0.151 M magnesium fluoride solution?

Accepted Answer

A)   3.92 g
B)   63 g
C)   9.4 g
D)   1.01 g
E)   none of these

Question 9

Calculate the molarity of a solution prepared by dissolving 6.24 g of NaI in enough water to prepare 312 mL of solution.

Accepted Answer

A)    M
B)    M
C)   1.95 M
D)   20.0 M
E)    M

Question 10

You have two solutions of sodium chloride. One is a 2.00 M solution, the other is a 5.00 M solution. You have much more of the 5.00 M solution, and you add the solutions together. Which of the following could be the concentration of the final solution?

Accepted Answer

A)   4.80 M
B)   3.50 M
C)   2.90 M
D)   7.00 M
E)   7.20 M

Question 11

Assume that vinegar is a 0.852 M solution of acetic acid (HC2H3O2)  in water. What volume of 0.2136 M NaOH would be needed to completely neutralize 6.89 mL of vinegar?

Accepted Answer

A)   5.87 mL
B)   1.47 mL
C)   1.73 mL
D)   27.5 mL
E)   4.00 mL

Question 12

A nitric acid solution that is 80.0% HNO3 (by mass)  contains

Accepted Answer

A)   80.0 g HNO3 and 100.0 g water
B)   80.0 g HNO3 and 20.0 g water
C)   80.0 mol HNO3
D)   80.0 g HNO3 and 80.0 g water
E)   none of these

Question 13

What mass of solute is contained in 256 mL of a 0.909 M ammonium chloride solution?

Accepted Answer

A)   12.4 g
B)   48.6 g
C)   0.282 g
D)   233 g
E)   none of these

Question 14

Calculate the volume of 0.164 M HNO3 required to neutralize 25.0 mL of 0.250 M NaOH.

Accepted Answer

A)   16.4 mL
B)   38.1 mL
C)   4.10 mL
D)   26.2 mL
E)   none of these

Question 15

Which of the following aqueous solutions contains the greatest number of ions in solution?

Accepted Answer

A)   2.0 L of 2.00 M sodium phosphate
B)   2.0 L of 2.00 M magnesium chloride
C)   3.0 L of 2.00 M sodium bromide
D)   2.0 L of 2.50 M sodium chloride
E)   1.0 L of 4.00 M potassium carbonate

Question 16

What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant figures for this problem.)

Accepted Answer

A)   26.0 mL
B)   463 mL
C)   255 mL
D)   2158 mL
E)   2.16 mL

Question 17

What mass of solute is contained in 64.9 mL of a 2.00 M sodium bromide solution?

Accepted Answer

A)   13.4 g
B)   3.34 g
C)   0.0649 g
D)   0.130 g
E)   0.206 g

Question 18

You have 250.0 mL of 4.00 M sugar solution. You add 376.3 mL of water to this solution. Determine the concentration of the sugar solution after the water has been added.

Accepted Answer

A)   4.00 M
B)   1.85 M
C)   2.34 M
D)   1.60 M
E)   1.93 M

Question 19

You have 3.00 L of a 3.77 M solution of NaCl(aq)  called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq)  called solution B. You mix these solutions together, making solution C. Calculate the concentration (in M)  of Cl- ions in solution C.

Accepted Answer

A)   0 M
B)   2.26 M
C)   1.46 M
D)   2.44 M
E)   0.800 M

Question 20

Calculate the volume of 0.581 M KOH required to neutralize 150. mL of 0.100 M HCl.

Accepted Answer

A)   87.2 mL
B)   25.8 mL
C)   872 mL
D)   38.7 mL
E)   none of these

Exam 15: Solutions

What is the minimum volume of a 3.88 M NaOH solution needed to make 150.0 mL of a 0.800 M NaOH solution?

Correct AnswerverifiedShow Answer

What volume of a 0.176 M Na2S solution contains 1.01 g of Na+ ions?

Correct AnswerverifiedShow Answer

If you mix 20.0 mL of a 3.00 M sugar solution with 30.0 mL of a 5.57 M sugar solution, you will end up with a sugar solution of ________.

Correct AnswerverifiedShow Answer

What mass of solute is contained in 256 mL of a 0.909 M ammonium chloride solution?

Correct AnswerverifiedShow Answer

What mass of solute is contained in 417 mL of a 0.151 M magnesium fluoride solution?

Correct AnswerverifiedShow Answer

In soda pop, CO2(g) is a ______________, and water is the ______________.

Correct AnswerverifiedShow Answer

You have 3.00 L of a 3.77 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq) called solution B. You mix these solutions together, making solution C. Calculate the concentration (in M) of Cl- ions in solution C.

Correct AnswerverifiedShow Answer

You have two solutions of sodium chloride. One is a 2.00 M solution, the other is a 5.00 M solution. You have much more of the 5.00 M solution, and you add the solutions together. Which of the following could be the concentration of the final solution?

Correct AnswerverifiedShow Answer

Calculate the volume of 0.164 M HNO3 required to neutralize 25.0 mL of 0.250 M NaOH.

Correct AnswerverifiedShow Answer

A nitric acid solution that is 80.0% HNO3 (by mass) contains

Correct AnswerverifiedShow Answer

You have 250.0 mL of 4.00 M sugar solution. You add 376.3 mL of water to this solution. Determine the concentration of the sugar solution after the water has been added.

Correct AnswerverifiedShow Answer

What mass of solute is contained in 64.9 mL of a 2.00 M sodium bromide solution?

Correct AnswerverifiedShow Answer

Calculate the molarity of a solution prepared by dissolving 6.24 g of NaI in enough water to prepare 312 mL of solution.

Correct AnswerverifiedShow Answer

What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved?

Correct AnswerverifiedShow Answer

Assume that vinegar is a 0.852 M solution of acetic acid (HC2H3O2) in water. What volume of 0.2136 M NaOH would be needed to completely neutralize 6.89 mL of vinegar?

Correct AnswerverifiedShow Answer

Calculate the volume of 0.581 M KOH required to neutralize 150. mL of 0.100 M HCl.

Correct AnswerverifiedShow Answer

Which of the following aqueous solutions contains the greatest number of ions in solution?

Correct AnswerverifiedShow Answer

You have 25.00 mL of a 0.1000 M sugar solution. How much water must be added to make a 0.01809M solution?

Correct AnswerverifiedShow Answer

What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant figures for this problem.)

Correct AnswerverifiedShow Answer

You have 100.0 mL of a 0.2500 M solution of NaCl sitting in a beaker. After several days you test the solution and find that it is now 0.4142M. How much water must have evaporated?

Correct AnswerverifiedShow Answer

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What volume of a 0.176 M Na₂S solution contains 1.01 g of Na⁺ ions?

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In soda pop, CO₂(g) is a , and water is the .

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You have 3.00 L of a 3.77 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO₃(aq) called solution B. You mix these solutions together, making solution C. Calculate the concentration (in M) of Cl^- ions in solution C.

Correct Answer
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Calculate the volume of 0.164 M HNO₃ required to neutralize 25.0 mL of 0.250 M NaOH.

Correct Answer
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A nitric acid solution that is 80.0% HNO₃ (by mass) contains

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Assume that vinegar is a 0.852 M solution of acetic acid (HC₂H₃O₂) in water. What volume of 0.2136 M NaOH would be needed to completely neutralize 6.89 mL of vinegar?

Correct Answer
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