Question 1

The solubility of potassium chloride is 34.2 g/100.0 g of water at 20ºC. Which of the following best describes a solution prepared by adding 58.3 g of potassium chloride to 150.0 g of water at this temperature?

Accepted Answer

A)  34.2 g of KCl will dissolve and 24.1 g will remain undissolved.
B)  51.3 g of KCl will dissolve and 7.0 g will remain undissolved.
C)  24.1 g of KCl will dissolve and 34.2 g will remain undissolved.
D)  58.3 g of KCl will dissolve and the solution will be unsaturated.
E)  107 g of KCl will dissolve and the solution will be saturated.F) A) and C)
G) A) and B)

Question 2

When a 25.00 mL sample of H2SO4 is titrated with 0.3423 M NaOH, 26.67 mL of NaOH solution is required to neutralize the H2SO4. What is the molarity of the H2SO4?

Accepted Answer

A)  0.3652 M
B)  0.3209 M
C)  0.1604 M
D)  0.1826 M
E)  0.1988 MF) C) and D)
G) A) and C)

Question 3

What will happen to a blood cell that is placed in pure water?

Accepted Answer

A)  The cell will shrink because there will be a net flow of water to the outside of the cell.
B)  The cell will shrink because there will be a net flow of electrolytes to the outside of the cell.
C)  The cell will expand because there will be a net flow of water to the inside of the cell.
D)  The cell will expand because there will be a net flow of electrolytes to the inside of the cell.
E)  Nothing will happen because the cell is impermeable.F) A) and B)
G) A) and C)

Question 4

When solutions of silver nitrate, AgNO3, and calcium iodide, CaI2, are mixed, a yellow precipitate of silver iodide is formed. Calculate the mass (in grams)of silver iodide formed if 50.00 mL of 1.00 M AgNO3 is combined with 30.00 mL of 1.25 M CaI2.

Accepted Answer

To calculate the mass of silver iodide (...

Question 5

Which of the following statements regarding the solution process is incorrect?

Accepted Answer

A)  When a solution is formed from an ionic compound, the anions and cations are evenly distributed throughout the solution.
B)  When a polar covalent compound dissolves in water, dipole-dipole interactions take place between the water molecules and the solute molecules.
C)  A nonpolar compound such as hexane, C6H14, forms London dispersion forces with a nonpolar solute, such as I2 during the solution process.
D)  The solution process is always exothermic.
E)  When an ionic solute dissolves, the entropy of the solution is usually greater than the original entropy of the crystalline form of the ionic substance.F) All of the above
G) B) and E)

Question 6

A solution of ethanol, C2H5OH, is prepared by dissolving 25.0 mL of ethanol in enough water to give a total volume of 250.0 mL. What is the percent-by-volume concentration of ethanol?

Accepted Answer

A)  10.0%
B)  9.09%
C)  90.0%
D)  1.00%
E)  225%F) C) and D)
G) A) and E)

Question 7

What ions, atoms, or molecules are present after CH3CH2OH(I) mixes with water?

Accepted Answer

A)  CH3CH2OH(aq) and H2O(l) 
B)  CH3CH2O-(aq) , H+(aq) , and H2O(l) 
C)  CH3CH2O-(aq) , and H3O+(aq) 
D)  2C(aq) , 6H(aq) , and H2O2(l) 
E)  CH3+(aq) , CH2O-(aq) , H+(aq) , and H2O(l) F) D) and E)
G) A) and B)

Question 8

The solute in the solution shown in the figure is a nonelectrolyte.

Accepted Answer

A) True 
 B)False

Question 9

What is the molal concentration of ions in a 2.40 m solution of Al(NO3) 3?

Accepted Answer

A)  2.40 m
B)  7.20 m
C)  9.60 m
D)  0.800 m
E)  31.2 mF) B) and E)
G) None of the above

Question 10

Rank the following solutions in order of increasing boiling point: 1.5 m fructose, C6H12O6
2.2 m NaCl
2.0 m methanol, CH3OH
1.0 m Al(NO3) 3

Accepted Answer

A)  C6H12O6 3OH 3) 3 
B)  CH3OH 3) 3 6H12O6
C)  Al(NO3) 3 6H12O6 3OH
D)  C6H12O6 3OH 3) 3
E)  NaCl 6H12O6 3OH 3) 3F) B) and E)
G) A) and C)

Question 11

What volume of 0.1452 M KOH is required to neutralize 25.00 mL of 0.1020 M H2SO4? (First, write a balanced equation for the reaction.)

Accepted Answer

A)  17.79 mL
B)  17.56 mL
C)  8.781 mL
D)  35.12 mL
E)  71.18 mLF) A) and B)
G) C) and E)

Question 12

Calculate the boiling point of a 4.0 m solution of KI in water. Remember that KI is an electrolyte. The normal boiling point of pure water is 100.0ºC. Kb (water) = 0.52ºC/m.

Accepted Answer

A)  101.0 ºC
B)  104.2ºC
C)  96.0ºC
D)  102.1ºC
E)  4.16ºCF) C) and D)
G) B) and E)

Question 13

What is the percent-by-mass concentration of KOH in a solution that is prepared by adding 18.0 g of KOH to 95.0 g of water?

Accepted Answer

A)  18.9%
B)  15.9%
C)  31.5%
D)  5.28%
E)  77.0%F) None of the above
G) A) and D)

Question 14

A solution is prepared by dissolving 100.0 g of cesium chloride (CsCl)in 100.0 g of water. The density of the solution is 1.58 g/cm3. Calculate the molality of the cesium chloride solution.

Accepted Answer

To calculate the molality of the cesium ...

Question 15

Which of the following statements regarding the solution process is incorrect?

Accepted Answer

A)  In a sodium chloride solution, the ions interact with the water molecules through ion-dipole forces.
B)  Hydration is the process whereby water molecules surround solute particles.
C)  A hydrated cation is surrounded by the partially positive end of the water molecules.
D)  When an ionic compound dissolves, the ionic bonds break.
E)  Some of the hydrogen bonds among the water molecules must break.F) A) and E)
G) D) and E)

Question 16

Which of the following aqueous solutions should have the lowest freezing point?

Accepted Answer

A)  1.0 m C12H22O11
B)  1.0 m NaNO3
C)  1.0 m NaCl
D)  1.0 m MgCl2
E)  All should have the same freezing pointF) None of the above
G) A) and C)

Question 17

What volume (in milliliters)of 0.2500 M NaOH is required to neutralize 25.00 mL of 0.2000 M HCl?

Accepted Answer

To determine the volume of 0.2500 M NaOH...

Question 18

Which of the following substances is a nonelectrolyte?

Accepted Answer

A)  KMnO4
B)  CH3CH2OH
C)  NaOH
D)  K2SO4
E)  Na2HF) A) and E)
G) C) and E)

Question 19

Which of the following occurs when an ionic compound dissolves in water to form a solution?

Accepted Answer

A)  Ionic bonds break.
B)  Hydrogen bonds are disrupted.
C)  H2O - Ion attractive forces form.
D)  Entropy increases.
E)  All of theseF) A) and B)
G) None of the above

Question 20

Given that the solubility of potassium chlorate in water is 10.0 g/100 g water at 30°C, what mass of potassium chlorate is dissolved in 250 grams of a saturated solution at 30°C?

Accepted Answer

A)  any mass greater than 25.0 g
B)  any mass less than 10.0 g
C)  any mass less than 25.0 g
D)  25.0 g
E)  10.0 gF) C) and D)
G) None of the above

Exam 11: Solutions

What will happen to a blood cell that is placed in pure water?

Correct AnswerverifiedShow Answer

When solutions of silver nitrate, AgNO3, and calcium iodide, CaI2, are mixed, a yellow precipitate of silver iodide is formed. Calculate the mass (in grams)of silver iodide formed if 50.00 mL of 1.00 M AgNO3 is combined with 30.00 mL of 1.25 M CaI2.

Correct AnswerAnswered by ExamLex AITo calculate the mass of silver iodide (...View AnswerShow Answer

A solution is prepared by dissolving 100.0 g of cesium chloride (CsCl)in 100.0 g of water. The density of the solution is 1.58 g/cm3. Calculate the molality of the cesium chloride solution.

Correct AnswerAnswered by ExamLex AITo calculate the molality of the cesium ...View AnswerShow Answer

What ions, atoms, or molecules are present after CH3CH2OH(I) mixes with water?

Correct AnswerverifiedShow Answer

The solubility of potassium chloride is 34.2 g/100.0 g of water at 20ºC. Which of the following best describes a solution prepared by adding 58.3 g of potassium chloride to 150.0 g of water at this temperature?

Correct AnswerverifiedShow Answer

Rank the following solutions in order of increasing boiling point: 1.5 m fructose, C6H12O6 2.2 m NaCl 2.0 m methanol, CH3OH 1.0 m Al(NO3) 3

Correct AnswerverifiedShow Answer

What volume of 0.1452 M KOH is required to neutralize 25.00 mL of 0.1020 M H2SO4? (First, write a balanced equation for the reaction.)

Correct AnswerverifiedShow Answer

Given that the solubility of potassium chlorate in water is 10.0 g/100 g water at 30°C, what mass of potassium chlorate is dissolved in 250 grams of a saturated solution at 30°C?

Correct AnswerverifiedShow Answer

A solution of ethanol, C2H5OH, is prepared by dissolving 25.0 mL of ethanol in enough water to give a total volume of 250.0 mL. What is the percent-by-volume concentration of ethanol?

Correct AnswerverifiedShow Answer

The solute in the solution shown in the figure is a nonelectrolyte.

Correct AnswerverifiedShow Answer

Calculate the boiling point of a 4.0 m solution of KI in water. Remember that KI is an electrolyte. The normal boiling point of pure water is 100.0ºC. Kb (water) = 0.52ºC/m.

Correct AnswerverifiedShow Answer

What is the molal concentration of ions in a 2.40 m solution of Al(NO3) 3?

Correct AnswerverifiedShow Answer

Which of the following aqueous solutions should have the lowest freezing point?

Correct AnswerverifiedShow Answer

Which of the following statements regarding the solution process is incorrect?

Correct AnswerverifiedShow Answer

Which of the following substances is a nonelectrolyte?

Correct AnswerverifiedShow Answer

What is the percent-by-mass concentration of KOH in a solution that is prepared by adding 18.0 g of KOH to 95.0 g of water?

Correct AnswerverifiedShow Answer

What volume (in milliliters)of 0.2500 M NaOH is required to neutralize 25.00 mL of 0.2000 M HCl?

Correct AnswerAnswered by ExamLex AITo determine the volume of 0.2500 M NaOH...View AnswerShow Answer

When a 25.00 mL sample of H2SO4 is titrated with 0.3423 M NaOH, 26.67 mL of NaOH solution is required to neutralize the H2SO4. What is the molarity of the H2SO4?

Correct AnswerverifiedShow Answer

Which of the following occurs when an ionic compound dissolves in water to form a solution?

Correct AnswerverifiedShow Answer

Which of the following statements regarding the solution process is incorrect?

Correct AnswerverifiedShow Answer

Correct Answer
verified

When solutions of silver nitrate, AgNO₃, and calcium iodide, CaI₂, are mixed, a yellow precipitate of silver iodide is formed. Calculate the mass (in grams)of silver iodide formed if 50.00 mL of 1.00 M AgNO₃ is combined with 30.00 mL of 1.25 M CaI₂.

Correct Answer
Answered by ExamLex AI
To calculate the mass of silver iodide (...
View Answer

A solution is prepared by dissolving 100.0 g of cesium chloride (CsCl)in 100.0 g of water. The density of the solution is 1.58 g/cm³. Calculate the molality of the cesium chloride solution.

Correct Answer
Answered by ExamLex AI
To calculate the molality of the cesium ...
View Answer

What ions, atoms, or molecules are present after CH₃CH₂OH(I) mixes with water?

Correct Answer
verified

Correct Answer
verified

Rank the following solutions in order of increasing boiling point: 1.5 m fructose, C₆H₁₂O₆ 2.2 m NaCl 2.0 m methanol, CH₃OH 1.0 m Al(NO₃) ₃

Correct Answer
verified

What volume of 0.1452 M KOH is required to neutralize 25.00 mL of 0.1020 M H₂SO₄? (First, write a balanced equation for the reaction.)

Correct Answer
verified

Correct Answer
verified

A solution of ethanol, C₂H₅OH, is prepared by dissolving 25.0 mL of ethanol in enough water to give a total volume of 250.0 mL. What is the percent-by-volume concentration of ethanol?

Correct Answer
verified

Correct Answer
verified

Calculate the boiling point of a 4.0 m solution of KI in water. Remember that KI is an electrolyte. The normal boiling point of pure water is 100.0ºC. K_b (water) = 0.52ºC/m.

Correct Answer
verified

What is the molal concentration of ions in a 2.40 m solution of Al(NO₃) ₃?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
To determine the volume of 0.2500 M NaOH...
View Answer

When a 25.00 mL sample of H₂SO₄ is titrated with 0.3423 M NaOH, 26.67 mL of NaOH solution is required to neutralize the H₂SO₄. What is the molarity of the H₂SO₄?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified