Question 1

In the following equation, __________ will form a precipitate.
BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl

Accepted Answer

BaSO₄

Question 2

What is the molarity of a solution which contains 58.5 g of sodium chloride dissolved in 0.500 L of solution?

Accepted Answer

A)  0.500 M 
B)  1.00 M 
C)  1.50 M 
D)  2.00 M 
E)  4.00 M 
A)  0.500 M 
B)  1.00 M 
C)  1.50 M 
D)  2.00 M 
E)  4.00 M D

Question 3

What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?

Accepted Answer

A)  3.0 L 
B)  0.50 L 
C)  2.0 L 
D)  4.5 L 
E)  0.22 L 
A)  3.0 L 
B)  0.50 L 
C)  2.0 L 
D)  4.5 L 
E)  0.22 L C

Question 4

Identify the term defined in each description.
-a solution that contains the highest amount of solute that dissolves at a given temperature

Accepted Answer

A) hypotonic 
B) unsaturated 
C) hydrogen bonding 
D) saturated 
E) hypertonic
F)hydration 
A) hypotonic 
B) unsaturated 
C) hydrogen bonding 
D) saturated 
E) hypertonic
F)hydration

Question 5

A solution of sodium carbonate, Na2CO₃, that has a molarity of 0.0100 M contains __________ equivalents of carbonate per liter of the solution.

Accepted Answer

Question 6

Is barium sulfate, BaSO₄, soluble or insoluble in water?

Accepted Answer

The answer of Is barium sulfate, BaSO₄, soluble or insoluble...

Question 7

Methanol, CH3OH, can be classified as a __________.

Accepted Answer

A)  gas 
B)  solid 
C)  weak electrolyte 
D)  strong electrolyte 
E)  nonelectrolyte 
A)  gas 
B)  solid 
C)  weak electrolyte 
D)  strong electrolyte 
E)  nonelectrolyte

Question 8

When solutions of KCl and Pb(NO₃)₂are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs?

Accepted Answer

A)  KCl(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbCl₂(s) 
B)  KNO₃(aq) + PbCl₂(s) → KCl(aq) + Pb(NO₃)₂(aq) 
C)  K+(aq) + NO₃-(aq) → KNO₃(aq) 
D)  2KCl(aq) + Pb(NO₃)₂(aq) → 2 KNO₃(aq) + PbCl₂(s) 
E)  KCl(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbCl(s) 
A)  KCl(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbCl₂(s) 
B)  KNO₃(aq) + PbCl₂(s) → KCl(aq) + Pb(NO₃)₂(aq) 
C)  K+(aq) + NO₃-(aq) → KNO₃(aq) 
D)  2KCl(aq) + Pb(NO₃)₂(aq) → 2 KNO₃(aq) + PbCl₂(s) 
E)  KCl(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbCl(s)

Question 9

For the question(s) that follow, consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane.
-A solution that has an osmotic pressure less than that of red blood cells is called

Accepted Answer

A)  saturated. 
B)  hypertonic. 
C)  isotonic. 
D)  hypotonic. 
E)  unsaturated. 
A)  saturated. 
B)  hypertonic. 
C)  isotonic. 
D)  hypotonic. 
E)  unsaturated.

Question 10

An intravenous replacement solution contains 4.0 mEq/L of Ca2+ ions. How many grams of Ca2+ are in 3.0 L of the solution?

Accepted Answer

A)  0.24 g 
B)  0.80 g 
C)  0.40 g 
D)  240 g 
E)  4.0 g 
A)  0.24 g 
B)  0.80 g 
C)  0.40 g 
D)  240 g 
E)  4.0 g

Question 11

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells.
-glucose, a nonelectrolyte

Accepted Answer

A) both 
B) ions 
C) molecules 
A) both 
B) ions 
C) molecules

Question 12

Substances whose particles in solution scatter light and pass through filters but cannot pass through semipermeable membranes are called __________.

Accepted Answer

The answer of Substances whose particles in solution scatter light...

Question 13

Hydrogen bonds are a major factor in the structure of

Accepted Answer

A)  DNA. 
B)  hydrogen chloride. 
C)  dry ice. 
D)  air. 
E)  table salt. 
A)  DNA. 
B)  hydrogen chloride. 
C)  dry ice. 
D)  air. 
E)  table salt.

Question 14

How many moles of CaCl₂ are in 250 mL of a 3.0 M of CaCl₂ solution?

Accepted Answer

A)  750 moles 
B)  1.3 moles 
C)  83 moles 
D)  0.75 mole 
E)  3.0 moles 
A)  750 moles 
B)  1.3 moles 
C)  83 moles 
D)  0.75 mole 
E)  3.0 moles

Question 15

Match the type of mixture with the appropriate characteristics.
-0.5% NaCl

Accepted Answer

A) hypertonic 
B) hypotonic 
C) isotonic 
A) hypertonic 
B) hypotonic 
C) isotonic

Question 16

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 17

What is the concentration, in m/v percent, of a solution prepared from 50. g NaCl and 2.5 L of water?

Accepted Answer

A)  5.0% 
B)  2.0% 
C)  0.020% 
D)  0.050% 
E)  20.% 
A)  5.0% 
B)  2.0% 
C)  0.020% 
D)  0.050% 
E)  20.%

Question 18

A mixture in which one component settles is called a(n) __________.

Accepted Answer

A)  solution 
B)  colloid 
C)  suspension 
D)  electrolyte 
E)  nonelectrolyte 
A)  solution 
B)  colloid 
C)  suspension 
D)  electrolyte 
E)  nonelectrolyte

Question 19

1.0 mole of NaCl is added to 1.0 L of water. The freezing point of the solution will be __________ the freezing point of pure water.

Accepted Answer

A)  higher than 
B)  lower than 
C)  the same as 
A)  higher than 
B)  lower than 
C)  the same as

Question 20

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells.
-CH3CH₂OH, a nonelectrolyte

Accepted Answer

A) both 
B) ions 
C) molecules 
A) both 
B) ions 
C) molecules

Exam 8: Solutions

In the following equation, __________ will form a precipitate. BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl

What is the molarity of a solution which contains 58.5 g of sodium chloride dissolved in 0.500 L of solution?

What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?

Identify the term defined in each description. -a solution that contains the highest amount of solute that dissolves at a given temperature

A solution of sodium carbonate, Na2CO₃, that has a molarity of 0.0100 M contains __________ equivalents of carbonate per liter of the solution.

Is barium sulfate, BaSO₄, soluble or insoluble in water?

Methanol, CH3OH, can be classified as a __________.

When solutions of KCl and Pb(NO₃)₂are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs?

For the question(s) that follow, consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane. -A solution that has an osmotic pressure less than that of red blood cells is called

An intravenous replacement solution contains 4.0 mEq/L of Ca2+ ions. How many grams of Ca2+ are in 3.0 L of the solution?

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells. -glucose, a nonelectrolyte

Substances whose particles in solution scatter light and pass through filters but cannot pass through semipermeable membranes are called __________.

Hydrogen bonds are a major factor in the structure of

How many moles of CaCl₂ are in 250 mL of a 3.0 M of CaCl₂ solution?

Match the type of mixture with the appropriate characteristics. -0.5% NaCl

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

What is the concentration, in m/v percent, of a solution prepared from 50. g NaCl and 2.5 L of water?

A mixture in which one component settles is called a(n) __________.

1.0 mole of NaCl is added to 1.0 L of water. The freezing point of the solution will be __________ the freezing point of pure water.

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells. -CH3CH₂OH, a nonelectrolyte

Chemistry and Measurements

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Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Reaction Rates and Chemical Equilibrium

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Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

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Metabolic Pathways for Carbohydrates

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Filters

A solution of sodium carbonate, Na₂CO₃, that has a molarity of 0.0100 M contains __________ equivalents of carbonate per liter of the solution.

Methanol, CH₃OH, can be classified as a __________.

An intravenous replacement solution contains 4.0 mEq/L of Ca²⁺ ions. How many grams of Ca²⁺ are in 3.0 L of the solution?

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells. -CH₃CH₂OH, a nonelectrolyte