Question 1

A solution is a homogeneous mixture of two or more substances.

Accepted Answer

A) True 
 B)False

Question 2

A solution is saturated in both nitrogen gas (N2)and sodium iodide (NaI)at 50°C.When the solution is cooled to 25°C,which of the following is most likely to occur?

Accepted Answer

A) Some nitrogen gas bubbles out of solution. 
B) Some sodium iodide will precipitate out of solution. 
C) Both A and B will happen. 
D) Nothing will happen. 
E) not enough information 
A) Some nitrogen gas bubbles out of solution. 
B) Some sodium iodide will precipitate out of solution. 
C) Both A and B will happen. 
D) Nothing will happen. 
E) not enough information

Question 3

How many liters of a 2.18 M solution can be made from     S?

Accepted Answer

A) 0.832 
B) 1.81 
C) 0.252 
D) 1.20 
E) none of the above 
A) 0.832 
B) 1.81 
C) 0.252 
D) 1.20 
E) none of the above

Question 4

Molality is calculated by dividing grams of solute by kilograms of solution.

Accepted Answer

A) True 
 B)False

Question 5

What will happen if a healthy red blood cell is placed into a container of pure water?

Accepted Answer

A) The cell will totally dissolve in the water. 
B) The cell will remain unchanged. 
C) The cell will become swollen. 
D) The cell will shrink. 
E) none of the above 
A) The cell will totally dissolve in the water. 
B) The cell will remain unchanged. 
C) The cell will become swollen. 
D) The cell will shrink. 
E) none of the above

Question 6

If 50 grams of salt dissolves into 250 grams of water,the resulting solution must have a mass of 300 grams.

Accepted Answer

A) True 
 B)False

Question 7

What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl?

Accepted Answer

A) 21.9 mL 
B) 0.560 mL 
C) 257 mL 
D) 560.mL 
E) none of the above 
A) 21.9 mL 
B) 0.560 mL 
C) 257 mL 
D) 560.mL 
E) none of the above

Question 8

How many grams of barium sulfate are produced if 25.34mL of 0.113M BaCl2 completely react given the reaction: 
BaCl2(aq)+ Na2SO4 (aq)→ BaSO4 (s)+ 2NaCl (aq)

Accepted Answer

A) 5.90 
B) 26.3 
C) 1039 
D) 0.668 
E) none of the above 
A) 5.90 
B) 26.3 
C) 1039 
D) 0.668 
E) none of the above

Question 9

Osmotic pressure is the pressure required to completely reverse the direction of solvent movement in osmosis.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following substances is NOT a solution?

Accepted Answer

A) humid air 
B) beer 
C) oxygen 
D) steel 
E) All of the above are solutions. 
A) humid air 
B) beer 
C) oxygen 
D) steel 
E) All of the above are solutions.

Question 11

Which of the following compounds is a strong electrolyte?

Accepted Answer

A)  C6H12O6 
B)  C7H14O5 
C)  C4H8O2 
D)  NaC2H3O2 
E) all of the above 
A)  C6H12O6 
B)  C7H14O5 
C)  C4H8O2 
D)  NaC2H3O2 
E) all of the above

Question 12

It would be expected that methanol (CH3OH)would be more soluble in water than methane (CH4)would be.

Accepted Answer

A) True 
 B)False

Question 13

One liter of a 2.0 M NaOH (aq)solution contains the same number of Na+ ions as does one liter of a 1.0 M Na2CO3 (aq)solution.

Accepted Answer

A) True 
 B)False

Question 14

How many mL of 0.218 M sodium sulfate react with exactly   of   BaC  given the reaction:

Accepted Answer

A) 13.1 
B) 5.52 
C) 24.6 
D) 2.86 
E) none of the above 
A) 13.1 
B) 5.52 
C) 24.6 
D) 2.86 
E) none of the above

Question 15

Which of the following aqueous solutions has the highest molar concentration of Na+ (aq)? (Assume each compound is fully dissolved in water.)

Accepted Answer

A) 3.0M NaCl (sodium chloride) 
B) 3.0M NaC2H3O2 (sodium acetate) 
C) 1.5M Na2SO4 (sodium sulfate) 
D) 1.0M Na3PO4 (sodium phosphate) 
E) All of these solutions have the same concentration of Na+ (aq). 
A) 3.0M NaCl (sodium chloride) 
B) 3.0M NaC2H3O2 (sodium acetate) 
C) 1.5M Na2SO4 (sodium sulfate) 
D) 1.0M Na3PO4 (sodium phosphate) 
E) All of these solutions have the same concentration of Na+ (aq).

Question 16

If the solubility of sodium acetate (Molar mass = 82 g/mol)is 76 grams per 100 grams of water,which of the following solutions would be considered supersaturated?

Accepted Answer

A) 8.5 moles of sodium acetate dissolved in 1 L of water 
B) 5.5 moles of sodium acetate dissolved in 500 mL of water 
C) 1.8 moles of sodium acetate dissolved in 300 mL of water 
D) 1.2 moles of sodium acetate dissolved in 200 mL of water 
E) none of the above 
A) 8.5 moles of sodium acetate dissolved in 1 L of water 
B) 5.5 moles of sodium acetate dissolved in 500 mL of water 
C) 1.8 moles of sodium acetate dissolved in 300 mL of water 
D) 1.2 moles of sodium acetate dissolved in 200 mL of water 
E) none of the above

Question 17

What is the change in the boiling point of a solution made by dissolving 14.7 g of C6H12O6 into 150.0 ml of water? The density of water is   and   .

Accepted Answer

A) 0.502°C 
B) 5.22°C 
C) 0.0418°C 
D) 0.279°C 
E) none of the above 
A) 0.502°C 
B) 5.22°C 
C) 0.0418°C 
D) 0.279°C 
E) none of the above

Question 18

An osmosis cell is constructed of a "U" shaped tube with a semipermeable membrane separating the two arms of the tube.Suppose a concentrated solution is placed in the left arm of the U-tube,and a dilute concentration of the same substance is poured into the other arm to the same height.After a period of time has elapsed,you would expect to find that:

Accepted Answer

A) the level of liquid in the left arm is now higher. 
B) the level of the liquid in the right arm is now higher. 
C) the levels in both arms stay at the same height. 
D) no molecules of any type cross the membrane. 
E) none of the above 
A) the level of liquid in the left arm is now higher. 
B) the level of the liquid in the right arm is now higher. 
C) the levels in both arms stay at the same height. 
D) no molecules of any type cross the membrane. 
E) none of the above

Question 19

How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?

Accepted Answer

A) 0.814 
B) 75.2 
C) 15.6 
D) 0.371 
E) none of the above 
A) 0.814 
B) 75.2 
C) 15.6 
D) 0.371 
E) none of the above

Question 20

Which one of the following aqueous solutions would have the higher concentration of K+ (aq)ions? (Assume total solubility in water.)

Accepted Answer

A) 1.0 M KC2H3O2 
B) 1.0 M KNO3 
C) 1.0 M K2CO3 
D) 1.0 M K3PO4 
E) All of these solutions have the same concentration of K+ (aq). 
A) 1.0 M KC2H3O2 
B) 1.0 M KNO3 
C) 1.0 M K2CO3 
D) 1.0 M K3PO4 
E) All of these solutions have the same concentration of K+ (aq).

A solution is a homogeneous mixture of two or more substances.

A solution is saturated in both nitrogen gas (N₂)and sodium iodide (NaI)at 50°C.When the solution is cooled to 25°C,which of the following is most likely to occur?

How many liters of a 2.18 M solution can be made from S?

Molality is calculated by dividing grams of solute by kilograms of solution.

What will happen if a healthy red blood cell is placed into a container of pure water?

If 50 grams of salt dissolves into 250 grams of water,the resulting solution must have a mass of 300 grams.

What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl?

How many grams of barium sulfate are produced if 25.34mL of 0.113M BaCl₂ completely react given the reaction: BaCl₂(aq)+ Na₂SO₄ (aq)→ BaSO₄ (s)+ 2NaCl (aq)

Osmotic pressure is the pressure required to completely reverse the direction of solvent movement in osmosis.

Which of the following substances is NOT a solution?

Which of the following compounds is a strong electrolyte?

It would be expected that methanol (CH₃OH)would be more soluble in water than methane (CH₄)would be.

One liter of a 2.0 M NaOH (aq)solution contains the same number of Na⁺ ions as does one liter of a 1.0 M Na₂CO₃ (aq)solution.

How many mL of 0.218 M sodium sulfate react with exactly of BaC given the reaction:

Which of the following aqueous solutions has the highest molar concentration of Na⁺ (aq)? (Assume each compound is fully dissolved in water.)

If the solubility of sodium acetate (Molar mass = 82 g/mol)is 76 grams per 100 grams of water,which of the following solutions would be considered supersaturated?

What is the change in the boiling point of a solution made by dissolving 14.7 g of C₆H₁₂O₆ into 150.0 ml of water? The density of water is and .

How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?

Which one of the following aqueous solutions would have the higher concentration of K⁺ (aq)ions? (Assume total solubility in water.)

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Exam 13: Solutions

A solution is a homogeneous mixture of two or more substances.

A solution is saturated in both nitrogen gas (N2)and sodium iodide (NaI)at 50°C.When the solution is cooled to 25°C,which of the following is most likely to occur?

How many liters of a 2.18 M solution can be made from S?

Molality is calculated by dividing grams of solute by kilograms of solution.

What will happen if a healthy red blood cell is placed into a container of pure water?

If 50 grams of salt dissolves into 250 grams of water,the resulting solution must have a mass of 300 grams.

What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl?

How many grams of barium sulfate are produced if 25.34mL of 0.113M BaCl2 completely react given the reaction: BaCl2(aq)+ Na2SO4 (aq)→ BaSO4 (s)+ 2NaCl (aq)

Osmotic pressure is the pressure required to completely reverse the direction of solvent movement in osmosis.

Which of the following substances is NOT a solution?

Which of the following compounds is a strong electrolyte?

It would be expected that methanol (CH3OH)would be more soluble in water than methane (CH4)would be.

One liter of a 2.0 M NaOH (aq)solution contains the same number of Na+ ions as does one liter of a 1.0 M Na2CO3 (aq)solution.

How many mL of 0.218 M sodium sulfate react with exactly of BaC given the reaction:

Which of the following aqueous solutions has the highest molar concentration of Na+ (aq)? (Assume each compound is fully dissolved in water.)

If the solubility of sodium acetate (Molar mass = 82 g/mol)is 76 grams per 100 grams of water,which of the following solutions would be considered supersaturated?

What is the change in the boiling point of a solution made by dissolving 14.7 g of C6H12O6 into 150.0 ml of water? The density of water is and .

How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?

Which one of the following aqueous solutions would have the higher concentration of K+ (aq)ions? (Assume total solubility in water.)

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

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A solution is saturated in both nitrogen gas (N₂)and sodium iodide (NaI)at 50°C.When the solution is cooled to 25°C,which of the following is most likely to occur?

How many grams of barium sulfate are produced if 25.34mL of 0.113M BaCl₂ completely react given the reaction: BaCl₂(aq)+ Na₂SO₄ (aq)→ BaSO₄ (s)+ 2NaCl (aq)

It would be expected that methanol (CH₃OH)would be more soluble in water than methane (CH₄)would be.

One liter of a 2.0 M NaOH (aq)solution contains the same number of Na⁺ ions as does one liter of a 1.0 M Na₂CO₃ (aq)solution.

Which of the following aqueous solutions has the highest molar concentration of Na⁺ (aq)? (Assume each compound is fully dissolved in water.)

What is the change in the boiling point of a solution made by dissolving 14.7 g of C₆H₁₂O₆ into 150.0 ml of water? The density of water is and .

Which one of the following aqueous solutions would have the higher concentration of K⁺ (aq)ions? (Assume total solubility in water.)