Question 1

Convert 82°F to the Kelvin scale.

Accepted Answer

A)  452 K 
B)  245 K 
C)  195 K 
D)  301 K 
E)  373 K 
A)  452 K 
B)  245 K 
C)  195 K 
D)  301 K 
E)  373 K

Question 2

Determine the number of cm3 in 21.0 U.S. qt.

Accepted Answer

A)  19,900 
B)  5.548 
C)  20.0 
D)  0.0199 
E)  10.0 
A)  19,900 
B)  5.548 
C)  20.0 
D)  0.0199 
E)  10.0

Question 3

Two hundred thirty-seven pounds of ethanol with a density of 0.789 g/cm3 occupies what volume in U.S. quarts?

Accepted Answer

A)  144 qt 
B)  108 qt 
C)  136 qt 
D)  84.9 qt 
E)  129 qt 
A)  144 qt 
B)  108 qt 
C)  136 qt 
D)  84.9 qt 
E)  129 qt

Question 4

An intensive property is dependent of the amount of matter observed.

Accepted Answer

A) True 
 B)False

Question 5

What mass of sugar, in grams, would be obtained from the evaporation of water from 1.5 kg of a sugar solution which is 10.5% sugar by mass?

Accepted Answer

A)  0.1575 g 
B)  0.158 g 
C)  157.5 g 
D)  15.8 g 
E)  160 g 
A)  0.1575 g 
B)  0.158 g 
C)  157.5 g 
D)  15.8 g 
E)  160 g

Question 6

Two hundred mL of solution has a mass of 198 g. What is the density of the solution?

Accepted Answer

A)  1.01 g/mL 
B)  3.98 g/mL 
C)  99.0 g/mL 
D)  0.990 g/mL 
E)  1.98 g/mL 
A)  1.01 g/mL 
B)  3.98 g/mL 
C)  99.0 g/mL 
D)  0.990 g/mL 
E)  1.98 g/mL

Question 7

An extensive property is

Accepted Answer

A)  dependent on the quantity of matter observed 
B)  difficult to measure 
C)  independent of the quantity of matter observed 
D)  is a unique value regardless of the measurement conditions 
E)  always strongly dependent on the external conditions 
A)  dependent on the quantity of matter observed 
B)  difficult to measure 
C)  independent of the quantity of matter observed 
D)  is a unique value regardless of the measurement conditions 
E)  always strongly dependent on the external conditions

Question 8

How many significant figures should the answer to the following calculation have? (1.4312 - 1.1 x 10-2) ÷ (1.0712 x 10-4)

Accepted Answer

A)  4 
B)  5 
C)  2 
D)  3 
A)  4 
B)  5 
C)  2 
D)  3

Question 9

Which of the following represents a base unit in the SI system of measurements?

Accepted Answer

A)  m2 
B)  kg 
C)  g/cm3 
D)  m/s 
E)  liter 
A)  m2 
B)  kg 
C)  g/cm3 
D)  m/s 
E)  liter

Question 10

One centimeter is equal to:

Accepted Answer

A)  1.09 yards 
B)  0.30 ft 
C)  2.54 inches 
D)  0.0109 yards 
E)  0.109 yards 
A)  1.09 yards 
B)  0.30 ft 
C)  2.54 inches 
D)  0.0109 yards 
E)  0.109 yards

Question 11

A jewelry alloy has a density of 12.412 g/ml and is 75.0% gold by weight. If 522 g of gold are available, what volume of this alloy can be produced?

Accepted Answer

A)  8.64 × 103 mL 
B)  31.5 mL 
C)  4.86 × 103 mL 
D)  335 mL 
E)  56.1 mL 
A)  8.64 × 103 mL 
B)  31.5 mL 
C)  4.86 × 103 mL 
D)  335 mL 
E)  56.1 mL

Question 12

Convert 35 ft/s to SI derived units.

Accepted Answer

A)  4.2 m/s 
B)  1100 m/s 
C)  1.65 m/s 
D)  0.074 m/s 
E)  11 m/s 
A)  4.2 m/s 
B)  1100 m/s 
C)  1.65 m/s 
D)  0.074 m/s 
E)  11 m/s

Question 13

The scientific method involves: 
I. observations
II. generalizations
III. experiments
IV. deduction
V. induction

Accepted Answer

A)  I, III, IV 
B)  I, II, III 
C)  I, II, III, IV 
D)  I, II, III, V 
E)  I, III, V 
A)  I, III, IV 
B)  I, II, III 
C)  I, II, III, IV 
D)  I, II, III, V 
E)  I, III, V

Question 14

A 16.0 g sample of iron has a volume of 2.035 cm3. What is its density expressed to the correct number of significant figures?

Accepted Answer

A)  0.127 g/cm3 
B)  32.6 g/cm3 
C)  7.86 g/cm3 
D)  7.862 g/cm3 
E)  7.9 g/cm3 
A)  0.127 g/cm3 
B)  32.6 g/cm3 
C)  7.86 g/cm3 
D)  7.862 g/cm3 
E)  7.9 g/cm3

Question 15

Which of the following is the proper set of conversion factors for changing lb/in2 to pascals? (Hint: A pascal is a unit of force equal to 1 N/m2.)

Accepted Answer

A)  (1 lb/4.45 N)(1 m2/1550 in2) 
B)  (4.45 N/1 lb)(1 m2/1550 in2) 
C)  (1 lb/4.45 N)(1550 in2/1 m2) 
D)  (4.45 N/1 lb)(1550 in2/1 m2) 
E)  (1 lb/4.45 N) 
A)  (1 lb/4.45 N)(1 m2/1550 in2) 
B)  (4.45 N/1 lb)(1 m2/1550 in2) 
C)  (1 lb/4.45 N)(1550 in2/1 m2) 
D)  (4.45 N/1 lb)(1550 in2/1 m2) 
E)  (1 lb/4.45 N)

Question 16

Saltwater is:

Accepted Answer

A)  a mixture 
B)  only one compound 
C)  an element 
D)  a molecule 
E)  an atom 
A)  a mixture 
B)  only one compound 
C)  an element 
D)  a molecule 
E)  an atom

Question 17

A track star ran exactly 400 meters in 45.23 seconds. What was the average speed in miles per hour?

Accepted Answer

A)  19.8 miles/h 
B)  19.78 miles/h 
C)  8.844 miles/h 
D)  0.3297 miles/h 
E)  8.84 miles/h 
A)  19.8 miles/h 
B)  19.78 miles/h 
C)  8.844 miles/h 
D)  0.3297 miles/h 
E)  8.84 miles/h

Question 18

The definition of pH is pH = -log[H3O+], where [H3O+] is the hydrogen ion concentration. If [H3O+] = 1.2 x 10-5, the pH, expressed to the correct number of significant figures, is:

Accepted Answer

A)  4.92 
B)  4.9 
C)  5.08 
D)  5.1 
A)  4.92 
B)  4.9 
C)  5.08 
D)  5.1

Question 19

A theory is a model used to explain natural laws and make predictions about natural phenomena.

Accepted Answer

A) True 
 B)False

Question 20

Oxygen is:

Accepted Answer

A)  a mixture 
B)  a compound 
C)  an element 
D)  a solution 
E)  always combined with hydrogen 
A)  a mixture 
B)  a compound 
C)  an element 
D)  a solution 
E)  always combined with hydrogen

Exam 1: Matter - Its Properties and Measurement

Convert 82°F to the Kelvin scale.

Determine the number of cm3 in 21.0 U.S. qt.

Two hundred thirty-seven pounds of ethanol with a density of 0.789 g/cm3 occupies what volume in U.S. quarts?

An intensive property is dependent of the amount of matter observed.

What mass of sugar, in grams, would be obtained from the evaporation of water from 1.5 kg of a sugar solution which is 10.5% sugar by mass?

Two hundred mL of solution has a mass of 198 g. What is the density of the solution?

An extensive property is

How many significant figures should the answer to the following calculation have? (1.4312 - 1.1 x 10-2) ÷ (1.0712 x 10-4)

Which of the following represents a base unit in the SI system of measurements?

One centimeter is equal to:

A jewelry alloy has a density of 12.412 g/ml and is 75.0% gold by weight. If 522 g of gold are available, what volume of this alloy can be produced?

Convert 35 ft/s to SI derived units.

The scientific method involves: I. observations II. generalizations III. experiments IV. deduction V. induction

A 16.0 g sample of iron has a volume of 2.035 cm3. What is its density expressed to the correct number of significant figures?

Which of the following is the proper set of conversion factors for changing lb/in2 to pascals? (Hint: A pascal is a unit of force equal to 1 N/m2.)

Saltwater is:

A track star ran exactly 400 meters in 45.23 seconds. What was the average speed in miles per hour?

The definition of pH is pH = -log[H3O+], where [H3O+] is the hydrogen ion concentration. If [H3O+] = 1.2 x 10-5, the pH, expressed to the correct number of significant figures, is:

A theory is a model used to explain natural laws and make predictions about natural phenomena.

Oxygen is:

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

How many significant figures should the answer to the following calculation have? (1.4312 - 1.1 x 10^-2) ÷ (1.0712 x 10^-4)

Which of the following is the proper set of conversion factors for changing lb/in² to pascals? (Hint: A pascal is a unit of force equal to 1 N/m².)

The definition of pH is pH = -log[H₃O⁺], where [H₃O⁺] is the hydrogen ion concentration. If [H₃O⁺] = 1.2 x 10^-5, the pH, expressed to the correct number of significant figures, is: