Question 1

The SI prefix that corresponds to a factor of 10-2 is

Accepted Answer

A)  centi 
B)  deci 
C)  kilo 
D)  milli 
E)  none of these 
A)  centi 
B)  deci 
C)  kilo 
D)  milli 
E)  none of these

Question 2

What is the result of the following multiplication expressed in scientific notation to the correct number of significant figures? (5.46 x 103)(8.0 x 10-3)

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 3

The number 0.00003009 expressed in exponential notation is

Accepted Answer

A)  3.009 * 10-5 
B)  3.0 *10-5 
C)  3.009 * 105 
D)  3.009 * 10-4 
E)  3.009 
A)  3.009 * 10-5 
B)  3.0 *10-5 
C)  3.009 * 105 
D)  3.009 * 10-4 
E)  3.009

Question 4

Baking soda and vinegar are mixed in a balloon. A gas is produced, and the balloon expands to a volume of 2.59 L. What is the volume of the balloon in cm3?

Accepted Answer

A)  2.59* 103 cm3 
B)  25.9 cm3 
C)  0.259 cm3 
D)  2.59* 10-3 cm3 
E)  2.59 * 102 cm3 
A)  2.59* 103 cm3 
B)  25.9 cm3 
C)  0.259 cm3 
D)  2.59* 10-3 cm3 
E)  2.59 * 102 cm3

Question 5

How many significant figures are in the number 1.20 * 103?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 6

How many significant figures are in the measurement 12.3004 g?

Accepted Answer

A)  6 
B)  5 
C)  4 
D)  3 
E)  2 
A)  6 
B)  5 
C)  4 
D)  3 
E)  2

Question 7

How many significant figures are in the number 10.050?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 8

Convert 81.0°F to kelvins.

Accepted Answer

A)  300.2 K 
B)  354.0 K 
C)  -192.0 K 
D)  -245.8 K 
E)  476.4 K 
A)  300.2 K 
B)  354.0 K 
C)  -192.0 K 
D)  -245.8 K 
E)  476.4 K

Question 9

What Kelvin temperature reading equals 61.2°F?

Accepted Answer

A)  -256.8 K 
B)  325.6 K 
C)  -220.4 K 
D)  324.8 K 
E)  289.2 K 
A)  -256.8 K 
B)  325.6 K 
C)  -220.4 K 
D)  324.8 K 
E)  289.2 K

Question 10

Convert: 18.6°F = _____________ °C.

Accepted Answer

A)  28.11°C 
B)  -24.12°C 
C)  91.08°C 
D)  -7.44°C 
E)  10.33°C 
A)  28.11°C 
B)  -24.12°C 
C)  91.08°C 
D)  -7.44°C 
E)  10.33°C

Question 11

Express the number 0.00395 in scientific notation.

Accepted Answer

A)  3.95 *10-3 
B)  3.95 *103 
C)  0.395 *10-3 
D)  395 * 10-5 
E)  none of these 
A)  3.95 *10-3 
B)  3.95 *103 
C)  0.395 *10-3 
D)  395 * 10-5 
E)  none of these

Question 12

How many significant figures are in the number 1000.0?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 13

A runner jogs 5.0 miles every morning. How many kilometers does this represent?

Accepted Answer

A)  3.1 km 
B)  8.0 km 
C)  60 km 
D)  0.32 km 
E)  3.4 km 
A)  3.1 km 
B)  8.0 km 
C)  60 km 
D)  0.32 km 
E)  3.4 km

Question 14

Convert: 21.9°C = ____________ °F.

Accepted Answer

A)  7.4°F 
B)  44.2°F 
C)  -19.8°F 
D)  39.4°F 
E)  71.4°F 
A)  7.4°F 
B)  44.2°F 
C)  -19.8°F 
D)  39.4°F 
E)  71.4°F

Question 15

A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in the cylinder, and the water level rises to the 31.2-mL mark. If the object has a mass of 80.4 g, what is its density?

Accepted Answer

A)  7.18 g/mL 
B)  0.139 g/mL 
C)  2.58 g/mL 
D)  4.02 g/mL 
E)  none of these 
A)  7.18 g/mL 
B)  0.139 g/mL 
C)  2.58 g/mL 
D)  4.02 g/mL 
E)  none of these

Question 16

An object is 149.7 inches in height. Express this height in centimeters.

Accepted Answer

A)  58.94 cm 
B)  0.01697 cm 
C)  12.48 cm 
D)  380.2 cm 
E)  152.2 cm 
A)  58.94 cm 
B)  0.01697 cm 
C)  12.48 cm 
D)  380.2 cm 
E)  152.2 cm

Question 17

Write 8,394 in standard scientific notation.

Accepted Answer

A)  8394 
B)  8.394 * 10-3 
C)  839.4 * 101 
D)  8.394 *1000 
E)  8.394 * 103 
A)  8394 
B)  8.394 * 10-3 
C)  839.4 * 101 
D)  8.394 *1000 
E)  8.394 * 103

Question 18

Convert: 38.6 L = _____________ mL.

Accepted Answer

A)    mL 
B)    mL 
C)    mL 
D)    mL 
E)  3.86 mL 
A)    mL 
B)    mL 
C)    mL 
D)    mL 
E)  3.86 mL

Question 19

Convert: 91.2°C = ______________ K.

Accepted Answer

A)  -181.8 K 
B)  181.8 K 
C)  164.2 K 
D)  364.2 K 
E)  32.9 K 
A)  -181.8 K 
B)  181.8 K 
C)  164.2 K 
D)  364.2 K 
E)  32.9 K

Question 20

Write the number 0.0005020 in scientific notation.

Accepted Answer

A)  5.020 * 104 
B)  0.5020 * 10-3 
C)  5.020 * 10-4 
D)  50.20 *10-5 
E)  none of these 
A)  5.020 * 104 
B)  0.5020 * 10-3 
C)  5.020 * 10-4 
D)  50.20 *10-5 
E)  none of these

Exam 2: Measurements and Calculations

The SI prefix that corresponds to a factor of 10-2 is

What is the result of the following multiplication expressed in scientific notation to the correct number of significant figures? (5.46 x 103)(8.0 x 10-3)

The number 0.00003009 expressed in exponential notation is

Baking soda and vinegar are mixed in a balloon. A gas is produced, and the balloon expands to a volume of 2.59 L. What is the volume of the balloon in cm3?

How many significant figures are in the number 1.20 * 103?

How many significant figures are in the measurement 12.3004 g?

How many significant figures are in the number 10.050?

Convert 81.0°F to kelvins.

What Kelvin temperature reading equals 61.2°F?

Convert: 18.6°F = _____________ °C.

Express the number 0.00395 in scientific notation.

How many significant figures are in the number 1000.0?

A runner jogs 5.0 miles every morning. How many kilometers does this represent?

Convert: 21.9°C = ____________ °F.

A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in the cylinder, and the water level rises to the 31.2-mL mark. If the object has a mass of 80.4 g, what is its density?

An object is 149.7 inches in height. Express this height in centimeters.

Write 8,394 in standard scientific notation.

Convert: 38.6 L = _____________ mL.

Convert: 91.2°C = ______________ K.

Write the number 0.0005020 in scientific notation.

Chemistry: an Introduction

Matter

Chemical Foundations: Elements, Atoms, and Ions

Nomenclature

Chemical Reactions: an Introduction

Reactions in Aqueous Solutions

Chemical Composition

Chemical Quantities

Energy

Modern Atomic Theory

Chemical Bonding

Gases

Liquids and Solids

Solutions

Acids and Bases

Equilibrium

Oxidation-Reduction Reactions and Electrochemistry

Radioactivity and Nuclear Energy

Organic Chemistry

Biochemistry

Filters

The SI prefix that corresponds to a factor of 10^-² is

What is the result of the following multiplication expressed in scientific notation to the correct number of significant figures? (5.46 x 10³)(8.0 x 10^-3)

Baking soda and vinegar are mixed in a balloon. A gas is produced, and the balloon expands to a volume of 2.59 L. What is the volume of the balloon in cm³?

How many significant figures are in the number 1.20 * 10³?