Question 1

The statement "like dissolves like" justifies why ________.

Accepted Answer

A)  water will dissolve ethyl alcohol 
B)  octane will dissolve methane 
C)  water will not dissolve fats 
D)  All of the above statements are correct. 
A)  water will dissolve ethyl alcohol 
B)  octane will dissolve methane 
C)  water will not dissolve fats 
D)  All of the above statements are correct.

Question 2

How many grams of NaOH are needed to prepare 500. mL of an aqueous solution that is 10.0% NaOH by mass? (Assume the density of such a solution to be 1.08 g/mL.)

Accepted Answer

The answer of How many grams of NaOH are needed...

Question 3

500 mL of a 0.4 M calcium nitrite contains ________ moles of calcium ions and ________ moles of nitrite ions.

Accepted Answer

A)  0.4; 0.2 
B)  0.2; 0.4 
C)  0.4; 0.6 
D)  0.2; 0.2 
A)  0.4; 0.2 
B)  0.2; 0.4 
C)  0.4; 0.6 
D)  0.2; 0.2

Question 4

If 30 grams of sodium chloride are added to 100 mL of water, will the resulting volume of the solution be less than, exactly, or greater than 100 mL?

Accepted Answer

A solution made in this way wi

Question 5

Which of the following solutions are possible?

Accepted Answer

A)  Both the solvent and solute are liquids. 
B)  Both the solvent and solute are solids. 
C)  The solvent is a liquid and the solute is a gas. 
D)  All of them are possible. 
A)  Both the solvent and solute are liquids. 
B)  Both the solvent and solute are solids. 
C)  The solvent is a liquid and the solute is a gas. 
D)  All of them are possible.

Question 6

Match each of the aqueous solutions with its corresponding molarity.
-2.0 moles of glucose in  4.0  x 103 mL solution

Accepted Answer

A) 1.3 M 
B) 0.80 M 
C) 4.4 M 
D) 2.80 M 
E) 0.5 M
F)0.11 M
G)0.60 M 
A) 1.3 M 
B) 0.80 M 
C) 4.4 M 
D) 2.80 M 
E) 0.5 M
F)0.11 M
G)0.60 M

Question 7

Which of the following is not a colligative property?

Accepted Answer

A)  molarity 
B)  freezing point depression 
C)  vapor pressure lowering 
D)  boiling point elevation 
A)  molarity 
B)  freezing point depression 
C)  vapor pressure lowering 
D)  boiling point elevation

Question 8

500 mL of a 0.4 M sodium nitrate contains ________ moles of sodium ions and ________ moles of nitrate ions.

Accepted Answer

A)  0.4; 0.2 
B)  0.2; 0.4 
C)  0.4; 0.6 
D)  0.2; 0.2 
A)  0.4; 0.2 
B)  0.2; 0.4 
C)  0.4; 0.6 
D)  0.2; 0.2

Question 9

A saline solution will boil at 100 °C.

Accepted Answer

A) True 
 B)False

Question 10

Match each solution with its corresponding mass of solute.
-25.0 mL of 0.10 M NaCl

Accepted Answer

A) 3.9 g 
B) 0.15 g 
C) 1.07 g 
D) 15.6 g 
E) 78 g 
A) 3.9 g 
B) 0.15 g 
C) 1.07 g 
D) 15.6 g 
E) 78 g

Question 11

Which of the following examples demonstrates a net decrease in entropy?

Accepted Answer

A)  melting an ice cube 
B)  adding cream to hot coffee 
C)  ripping a finished jigsaw puzzle into a thousand pieces 
D)  assembling a 1000-piece jigsaw puzzle 
E)  All of the preceding are examples of net increases in entropy. 
A)  melting an ice cube 
B)  adding cream to hot coffee 
C)  ripping a finished jigsaw puzzle into a thousand pieces 
D)  assembling a 1000-piece jigsaw puzzle 
E)  All of the preceding are examples of net increases in entropy.

Question 12

How many grams of water are in 100 g of a 30 percent-by-mass sugar solution?

Accepted Answer

A)  30 g 
B)  60 g 
C)  70 g 
D)  100 g 
A)  30 g 
B)  60 g 
C)  70 g 
D)  100 g

Question 13

Polar solutes will usually dissolve in polar solvents.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following statements is correct?

Accepted Answer

A)  Energy is needed to overcome the solute-solute attractive forces. 
B)  Energy is needed to overcome the solvent-solvent attractive forces. 
C)  Solvation releases energy. 
D)  All the above statements are correct. 
A)  Energy is needed to overcome the solute-solute attractive forces. 
B)  Energy is needed to overcome the solvent-solvent attractive forces. 
C)  Solvation releases energy. 
D)  All the above statements are correct.

Question 15

Matching Questions
Match each term with its corresponding definition .
-entropy

Accepted Answer

A) insoluble in water, such as the nonpolar hydrocarbon tail of a detergent molecule 
B) soluble in water, such as the polar end of a detergent molecule 
C) the spherical structure formed by detergent molecules when added to water 
D) a measure of the disorder in a system 
E) a solution of two or more metals 
A) insoluble in water, such as the nonpolar hydrocarbon tail of a detergent molecule 
B) soluble in water, such as the polar end of a detergent molecule 
C) the spherical structure formed by detergent molecules when added to water 
D) a measure of the disorder in a system 
E) a solution of two or more metals

Question 16

Air is a gas solution where oxygen is the solvent.

Accepted Answer

A) True 
 B)False

Question 17

In a dilute saline solution the solute is in the form of ________.

Accepted Answer

A)  Na+ and Cl- 
B)  NaCl (s) 
C)  NaCl (ℓ) 
D)  both A and B 
A)  Na+ and Cl- 
B)  NaCl (s) 
C)  NaCl (ℓ) 
D)  both A and B

Question 18

Henry's law gives the relationship between ________.

Accepted Answer

A)  colligative properties and the freezing point 
B)  solubility of a gas and concentration 
C)  solubility of a gas and pressure 
D)  hydrophobic and hydrophilic solutions 
A)  colligative properties and the freezing point 
B)  solubility of a gas and concentration 
C)  solubility of a gas and pressure 
D)  hydrophobic and hydrophilic solutions

Question 19

Match each of the solutions with the corresponding w/w % of that solution.
-20. g NaOH in 50. g of solution

Accepted Answer

A) 5.0% 
B) 25% 
C) 2.0% 
D) 20.% 
E) 40.%
F)11% 
A) 5.0% 
B) 25% 
C) 2.0% 
D) 20.% 
E) 40.%
F)11%

Question 20

Molarity is defined as moles of solute per liter of solvent.

Accepted Answer

A) True 
 B)False

The statement "like dissolves like" justifies why ________.

How many grams of NaOH are needed to prepare 500. mL of an aqueous solution that is 10.0% NaOH by mass? (Assume the density of such a solution to be 1.08 g/mL.)

500 mL of a 0.4 M calcium nitrite contains moles of calcium ions and moles of nitrite ions.

If 30 grams of sodium chloride are added to 100 mL of water, will the resulting volume of the solution be less than, exactly, or greater than 100 mL?

Which of the following solutions are possible?

Match each of the aqueous solutions with its corresponding molarity. -2.0 moles of glucose in 4.0 x 10³ mL solution

Which of the following is not a colligative property?

500 mL of a 0.4 M sodium nitrate contains moles of sodium ions and moles of nitrate ions.

A saline solution will boil at 100 °C.

Match each solution with its corresponding mass of solute. -25.0 mL of 0.10 M NaCl

Which of the following examples demonstrates a net decrease in entropy?

How many grams of water are in 100 g of a 30 percent-by-mass sugar solution?

Polar solutes will usually dissolve in polar solvents.

Which of the following statements is correct?

Matching Questions Match each term with its corresponding definition . -entropy

Air is a gas solution where oxygen is the solvent.

In a dilute saline solution the solute is in the form of ________.

Henry's law gives the relationship between ________.

Match each of the solutions with the corresponding w/w % of that solution. -20. g NaOH in 50. g of solution

Molarity is defined as moles of solute per liter of solvent.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces - the Ideal Gas

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 12: Solutions

The statement "like dissolves like" justifies why ________.

How many grams of NaOH are needed to prepare 500. mL of an aqueous solution that is 10.0% NaOH by mass? (Assume the density of such a solution to be 1.08 g/mL.)

500 mL of a 0.4 M calcium nitrite contains ________ moles of calcium ions and ________ moles of nitrite ions.

If 30 grams of sodium chloride are added to 100 mL of water, will the resulting volume of the solution be less than, exactly, or greater than 100 mL?

Which of the following solutions are possible?

Match each of the aqueous solutions with its corresponding molarity. -2.0 moles of glucose in 4.0 x 103 mL solution

Which of the following is not a colligative property?

500 mL of a 0.4 M sodium nitrate contains ________ moles of sodium ions and ________ moles of nitrate ions.

A saline solution will boil at 100 °C.

Match each solution with its corresponding mass of solute. -25.0 mL of 0.10 M NaCl

Which of the following examples demonstrates a net decrease in entropy?

How many grams of water are in 100 g of a 30 percent-by-mass sugar solution?

Polar solutes will usually dissolve in polar solvents.

Which of the following statements is correct?

Matching Questions Match each term with its corresponding definition . -entropy

Air is a gas solution where oxygen is the solvent.

In a dilute saline solution the solute is in the form of ________.

Henry's law gives the relationship between ________.

Match each of the solutions with the corresponding w/w % of that solution. -20. g NaOH in 50. g of solution

Molarity is defined as moles of solute per liter of solvent.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces - the Ideal Gas

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

500 mL of a 0.4 M calcium nitrite contains moles of calcium ions and moles of nitrite ions.

Match each of the aqueous solutions with its corresponding molarity. -2.0 moles of glucose in 4.0 x 10³ mL solution

500 mL of a 0.4 M sodium nitrate contains moles of sodium ions and moles of nitrate ions.