Question 1

What is the concentration,in mass percent (m/m),of a solution prepared from 50.0 g NaCl and 150.0 g of water?

Accepted Answer

A) 0.250% (m/m) 
B) 33.3% (m/m) 
C) 40.0% (m/m) 
D) 25.0% (m/m) 
E) 3.00% (m/m) 
A) 0.250% (m/m) 
B) 33.3% (m/m) 
C) 40.0% (m/m) 
D) 25.0% (m/m) 
E) 3.00% (m/m)

Question 2

According to Henry's law,the solubility of a gas in a liquid ________.

Accepted Answer

A) decreases as the gas pressure above the liquid increases 
B) increases as the gas pressure above the liquid increases 
C) remains the same as the temperature increases 
D) depends on the liquid polarity 
E) depends on the liquid density 
A) decreases as the gas pressure above the liquid increases 
B) increases as the gas pressure above the liquid increases 
C) remains the same as the temperature increases 
D) depends on the liquid polarity 
E) depends on the liquid density

Question 3

Which solution is isotonic to a red blood cell?

Accepted Answer

A) water 
B) 0.5% NaCl 
C) 2% glucose 
D) 0.9% NaCl 
E) 10% glucose 
A) water 
B) 0.5% NaCl 
C) 2% glucose 
D) 0.9% NaCl 
E) 10% glucose

Question 4

A substance that produces only a small number of ions in solution is known as a ________ electrolyte.

Accepted Answer

The answer of A substance that produces only a small...

Question 5

When MgO is added to water,the salt will be ________.

Accepted Answer

The answer of When MgO is added to water,the salt...

Question 6

How many grams of glucose are needed to prepare 400.mL of a 2.0%(m/v)glucose solution?

Accepted Answer

A) 800.g 
B) 0.0050 g 
C) 8.0 g 
D) 2.0 g 
E) 200.g 
A) 800.g 
B) 0.0050 g 
C) 8.0 g 
D) 2.0 g 
E) 200.g

Question 7

When KCl dissolves in water ________.

Accepted Answer

A) the   ions are attracted to dissolved   ions 
B) the   ions are attracted to the partial negative charge on the oxygen atom of the water molecule 
C) the   ions are attracted to   ions on the KCl crystal 
D) the   ions are attracted to the partial negative charge on the oxygen atom of the water molecule 
E) the   ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule 
A) the   ions are attracted to dissolved   ions 
B) the   ions are attracted to the partial negative charge on the oxygen atom of the water molecule 
C) the   ions are attracted to   ions on the KCl crystal 
D) the   ions are attracted to the partial negative charge on the oxygen atom of the water molecule 
E) the   ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule

Question 8

A substance that carries an electric current when dissolved in water is called a(n)________.

Accepted Answer

The answer of A substance that carries an electric current...

Question 9

What is the molarity of a KCl solution made by diluting 75.0 mL of a 0.200 M solution to a final volume of 100.mL?

Accepted Answer

A) 0.267 M 
B) 0.150 M 
C) 0.200 M 
D) 6.67 M 
E) 0.100 M 
A) 0.267 M 
B) 0.150 M 
C) 0.200 M 
D) 6.67 M 
E) 0.100 M

Question 10

Which of the following molecules can form hydrogen bonds?

Accepted Answer

A)    
B) NaH 
C)    
D)    
E) HI 
A)    
B) NaH 
C)    
D)    
E) HI

Question 11

Acetic acid can be classified as a ________.

Accepted Answer

A) gas 
B) solid 
C) weak electrolyte 
D) strong electrolyte 
E) ionic compound 
A) gas 
B) solid 
C) weak electrolyte 
D) strong electrolyte 
E) ionic compound

Question 12

A ________ will pass through a filter but not a semipermeable membrane.

Accepted Answer

A) solid 
B) precipitate 
C) solution 
D) suspension 
E) colloid 
A) solid 
B) precipitate 
C) solution 
D) suspension 
E) colloid

Question 13

Match between columns
                        Premises: HF,a weak electrolyte
urea,a nonelectrolyte
11ea71d0_de4b_fed2_91e5_eff86cea6c74_TB6077_11 11ea71d0_de4b_fed3_91e5_eff1e7b3236a_TB6077_11 ,a weak electrolyte
11ea71d0_de4b_d7bf_91e5_ffebdd1d771e_TB6077_11 11ea71d0_de4b_d7c0_91e5_c1ecb61a53c9_TB6077_11 OH,a nonelectrolyte
NaCl,a strong electrolyte
11ea71d0_de4b_d7c1_91e5_bd9e075abb64_TB6077_11 ,a soluble salt
glucose,a nonelectrolyte

Accepted Answer

The Answer of both and ions and molecules is...

Question 14

What is the new mass/volume percent (m/v)of a KOH solution that is prepared by diluting 110 mL of a 6.0% (m/v)KOH solution to 330 mL?

Accepted Answer

A) 2.0% (m/v) 
B) 1.0% (m/v) 
C) 6.0% (m/v) 
D) 12% (m/v) 
E) 18% (m/v) 
A) 2.0% (m/v) 
B) 1.0% (m/v) 
C) 6.0% (m/v) 
D) 12% (m/v) 
E) 18% (m/v)

Question 15

An increase in the temperature of a solution usually ________.

Accepted Answer

A) increases the boiling point 
B) increases the solubility of a gas in the solution 
C) increases the solubility of a solid solute in the solution 
D) decreases the solubility of a solid solute in the solution 
E) decreases the solubility of a liquid solute in the solution 
A) increases the boiling point 
B) increases the solubility of a gas in the solution 
C) increases the solubility of a solid solute in the solution 
D) decreases the solubility of a solid solute in the solution 
E) decreases the solubility of a liquid solute in the solution

Question 16

A substance that completely ionizes in water is a ________ electrolyte.

Accepted Answer

The answer of A substance that completely ionizes in water...

Question 17

________ can pass through filters but cannot pass through semipermeable membranes.

Accepted Answer

The answer of ________ can pass through filters but cannot...

Question 18

The number of moles of a compound dissolved in one liter of a solution is called the
________.

Accepted Answer

The answer of The number of moles of a compound...

Question 19

The molarity of a solution of 5.0 g of KCl in 100.mL of solution is ________.

Accepted Answer

A) 0.038 M 
B) 0.067 M 
C) 0.67 M 
D) 0.13 M 
E) 1.3 M 
A) 0.038 M 
B) 0.067 M 
C) 0.67 M 
D) 0.13 M 
E) 1.3 M

Question 20

Polar solutes are soluble in ________ solvents.

Accepted Answer

The answer of Polar solutes are soluble in ________ solvents....

What is the concentration,in mass percent (m/m),of a solution prepared from 50.0 g NaCl and 150.0 g of water?

According to Henry's law,the solubility of a gas in a liquid ________.

Which solution is isotonic to a red blood cell?

A substance that produces only a small number of ions in solution is known as a ________ electrolyte.

When MgO is added to water,the salt will be ________.

How many grams of glucose are needed to prepare 400.mL of a 2.0%(m/v)glucose solution?

When KCl dissolves in water ________.

A substance that carries an electric current when dissolved in water is called a(n)________.

What is the molarity of a KCl solution made by diluting 75.0 mL of a 0.200 M solution to a final volume of 100.mL?

Which of the following molecules can form hydrogen bonds?

Acetic acid can be classified as a ________.

A ________ will pass through a filter but not a semipermeable membrane.

What is the new mass/volume percent (m/v)of a KOH solution that is prepared by diluting 110 mL of a 6.0% (m/v)KOH solution to 330 mL?

An increase in the temperature of a solution usually ________.

A substance that completely ionizes in water is a ________ electrolyte.

________ can pass through filters but cannot pass through semipermeable membranes.

The number of moles of a compound dissolved in one liter of a solution is called the ________.

The molarity of a solution of 5.0 g of KCl in 100.mL of solution is ________.

Polar solutes are soluble in ________ solvents.

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Exam 9: Solutions

What is the concentration,in mass percent (m/m),of a solution prepared from 50.0 g NaCl and 150.0 g of water?

According to Henry's law,the solubility of a gas in a liquid ________.

Which solution is isotonic to a red blood cell?

A substance that produces only a small number of ions in solution is known as a ________ electrolyte.

When MgO is added to water,the salt will be ________.

How many grams of glucose are needed to prepare 400.mL of a 2.0%(m/v)glucose solution?

When KCl dissolves in water ________.

A substance that carries an electric current when dissolved in water is called a(n)________.

What is the molarity of a KCl solution made by diluting 75.0 mL of a 0.200 M solution to a final volume of 100.mL?

Which of the following molecules can form hydrogen bonds?

Acetic acid can be classified as a ________.

A ________ will pass through a filter but not a semipermeable membrane.

What is the new mass/volume percent (m/v)of a KOH solution that is prepared by diluting 110 mL of a 6.0% (m/v)KOH solution to 330 mL?

An increase in the temperature of a solution usually ________.

A substance that completely ionizes in water is a ________ electrolyte.

________ can pass through filters but cannot pass through semipermeable membranes.

The number of moles of a compound dissolved in one liter of a solution is called the ________.

The molarity of a solution of 5.0 g of KCl in 100.mL of solution is ________.

Polar solutes are soluble in ________ solvents.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Thiols, Ethers, Aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, Esters, Amines, and Amides

Lipids

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters