Question 1

What is the concentration of a solution formed by adding 65.0 mL of water to 25.0 mL of a 3.2 M NaCl solution?

Accepted Answer

A) 0.89 M NaCl 
B) 1.2 M NaCl 
C) 2.3 M NaCl 
D) 12 M NaCl 
A) 0.89 M NaCl 
B) 1.2 M NaCl 
C) 2.3 M NaCl 
D) 12 M NaCl

Question 2

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v)NaCl in water. How many grams of NaCl are contained in 575 mL of this solution?

Accepted Answer

A) 53 g NaCl 
B) 529 g NaCl 
C) 5.3 g NaCl 
D) 0.016 g NaCl 
E) 1.6 g NaCl 
A) 53 g NaCl 
B) 529 g NaCl 
C) 5.3 g NaCl 
D) 0.016 g NaCl 
E) 1.6 g NaCl

Question 3

Two solutions with the same osmotic pressure are said to be _____.

Accepted Answer

The answer of Two solutions with the same osmotic pressure...

Question 4

_____ is the passage of water and small molecules across a semipermeable membrane from a solution of low solute concentration to a solution of higher solute concentration.

Accepted Answer

The answer of _____ is the passage of water and...

Question 5

A solution with water as the solvent is called a(n)_____ solution.

Accepted Answer

The answer of A solution with water as the solvent...

Question 6

A flask contains two compartments (A and B.with equal volumes of solution separated by a semipermeable membrane. Which diagram represents the final level of the liquids if A is initially a 10% (w/v)glucose solution and B is initially a 20% (w/v)glucose solution?

Accepted Answer

A)    
B)    
C)    
A)    
B)    
C)

Question 7

The presence of a solute reduces the vapor pressure of the solvent above the solution, raising its boiling point.

Accepted Answer

A) True 
 B)False

Question 8

What is the molarity of a 11.5% (w/v)glucose (C6H12O6, molar mass 180.16 g/mol)solution?

Accepted Answer

A) 0.0638 M 
B) 0.638 M 
C) 1.15 M 
D) 1.76 M 
A) 0.0638 M 
B) 0.638 M 
C) 1.15 M 
D) 1.76 M

Question 9

Dilution involves adding additional _____ to a solution in order to decrease the concentration of the _____ .

Accepted Answer

The answer of Dilution involves adding additional _____ to a...

Question 10

A solution is made by dissolving 3.88 g of NaCl in enough water to make 67.8 mL of solution. What is the concentration of sodium chloride in units of weight/volume percent?

Accepted Answer

A) 5.41% (w/v)NaCl 
B) 94.3% (w/v)NaCl 
C) 5.72% (w/v)NaCl 
D) 0.0572% (w/v)NaCl 
A) 5.41% (w/v)NaCl 
B) 94.3% (w/v)NaCl 
C) 5.72% (w/v)NaCl 
D) 0.0572% (w/v)NaCl

Question 11

Only solids dissolve in water to form solutions.

Accepted Answer

A) True 
 B)False

Question 12

A solution can be made less concentrated by adding additional solvent.

Accepted Answer

A) True 
 B)False

Question 13

A liquid solution that contains a nonvolatile solute has a higher boiling point than the solvent alone.

Accepted Answer

A) True 
 B)False

Question 14

The concentration unit of weight/volume percent concentration, (w/v)%, is the number of grams of solute dissolved in 100 mL of solution.

Accepted Answer

A) True 
 B)False

Question 15

Water solubility for neutral molecules occurs only for small polar molecules or those with many O or N atoms that can hydrogen bond to water.

Accepted Answer

A) True 
 B)False

Question 16

Which solution has the greatest mass of solute?

Accepted Answer

A) 2.00 L of a 0.75 M NaCl solution 
B) 2.00 L of a 0.75 M CaCl2 solution 
C) 2.00 L of a 0.75 M Ca(NO3)2 solution 
D) 2.00 L of a 0.75 M Na2CO3 solution 
E) All of the solutions above have the same mass of solute. 
A) 2.00 L of a 0.75 M NaCl solution 
B) 2.00 L of a 0.75 M CaCl2 solution 
C) 2.00 L of a 0.75 M Ca(NO3)2 solution 
D) 2.00 L of a 0.75 M Na2CO3 solution 
E) All of the solutions above have the same mass of solute.

Question 17

Henry's law states that the solubility of a gas in a liquid is proportional to the

Accepted Answer

A) partial pressure of the gas above the liquid. 
B) temperature of the liquid. 
C) temperature of the gas above the liquid. 
D) molecular weight of the gas above the liquid. 
A) partial pressure of the gas above the liquid. 
B) temperature of the liquid. 
C) temperature of the gas above the liquid. 
D) molecular weight of the gas above the liquid.

Question 18

Which ionic compound is soluble in water?

Accepted Answer

A) PbBr2 
B) Fe(OH)3 
C) BaSO4 
D) Ca(NO3)2 
E) More than one of the ionic compounds above is soluble in water. 
A) PbBr2 
B) Fe(OH)3 
C) BaSO4 
D) Ca(NO3)2 
E) More than one of the ionic compounds above is soluble in water.

Question 19

Since living cells are surrounded by biological solutions separated by a semipermeable membrane, the osmotic pressure must be higher in the cell than outside the cell membrane.

Accepted Answer

A) True 
 B)False

Question 20

Dilution is the addition of solute to decrease the concentration of solvent.

Accepted Answer

A) True 
 B)False

Exam 8: Solutions

What is the concentration of a solution formed by adding 65.0 mL of water to 25.0 mL of a 3.2 M NaCl solution?

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v)NaCl in water. How many grams of NaCl are contained in 575 mL of this solution?

Two solutions with the same osmotic pressure are said to be _____.

_____ is the passage of water and small molecules across a semipermeable membrane from a solution of low solute concentration to a solution of higher solute concentration.

A solution with water as the solvent is called a(n)_____ solution.

A flask contains two compartments (A and B.with equal volumes of solution separated by a semipermeable membrane. Which diagram represents the final level of the liquids if A is initially a 10% (w/v)glucose solution and B is initially a 20% (w/v)glucose solution?

The presence of a solute reduces the vapor pressure of the solvent above the solution, raising its boiling point.

What is the molarity of a 11.5% (w/v)glucose (C6H12O6, molar mass 180.16 g/mol)solution?

Dilution involves adding additional _____ to a solution in order to decrease the concentration of the _____ .

A solution is made by dissolving 3.88 g of NaCl in enough water to make 67.8 mL of solution. What is the concentration of sodium chloride in units of weight/volume percent?

Only solids dissolve in water to form solutions.

A solution can be made less concentrated by adding additional solvent.

A liquid solution that contains a nonvolatile solute has a higher boiling point than the solvent alone.

The concentration unit of weight/volume percent concentration, (w/v)%, is the number of grams of solute dissolved in 100 mL of solution.

Water solubility for neutral molecules occurs only for small polar molecules or those with many O or N atoms that can hydrogen bond to water.

Which solution has the greatest mass of solute?

Henry's law states that the solubility of a gas in a liquid is proportional to the

Which ionic compound is soluble in water?

Since living cells are surrounded by biological solutions separated by a semipermeable membrane, the osmotic pressure must be higher in the cell than outside the cell membrane.

Dilution is the addition of solute to decrease the concentration of solvent.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

What is the molarity of a 11.5% (w/v)glucose (C₆H₁₂O₆, molar mass 180.16 g/mol)solution?

Dilution involves adding additional _ to a solution in order to decrease the concentration of the _ .