Question 1

How many significant figures are in the number 0.00204?

Accepted Answer

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

Question 2

The number 3.00183 rounded to four significant figures is
a.
3.002
b.
3.001
c.
3.000
d.
3.183
e.
none of these

Accepted Answer

A
3.002

Question 3

Write the number 345.626 in scientific notation.

Accepted Answer

A)  345.626 
B)  3.45626 * 10-2 
C)  34.5626 * 102 
D)  0.345626 *103 
E)  3.45626 * 102 
A)  345.626 
B)  3.45626 * 10-2 
C)  34.5626 * 102 
D)  0.345626 *103 
E)  3.45626 * 102 E

Question 4

Density is an example of a

Accepted Answer

A)  chemical property 
B)  physical property 
C)  qualitative property 
D)  chemical change 
E)  physical change 
A)  chemical property 
B)  physical property 
C)  qualitative property 
D)  chemical change 
E)  physical change

Question 5

How many quarts are in a 11.6-gal cooler of fruit punch? (1 gal = 4 qt)

Accepted Answer

A)  2.90 qt 
B)  0.345 qt 
C)  15.6 qt 
D)  7.6 qt 
E)  46.4 qt 
A)  2.90 qt 
B)  0.345 qt 
C)  15.6 qt 
D)  7.6 qt 
E)  46.4 qt

Question 6

The volume (in milliliters) occupied by 41.9 g of mercury (density = 13.6 g/mL) is

Accepted Answer

A)  570 mL 
B)  3.08 mL 
C)  0.325 mL 
D)  28.3 mL 
E)  none of these 
A)  570 mL 
B)  3.08 mL 
C)  0.325 mL 
D)  28.3 mL 
E)  none of these

Question 7

How many cups are in a 64-oz pitcher of lemonade? (8 fluid oz = 1 cup)

Accepted Answer

A)  512 cups 
B)  0.13 cup 
C)  72 cups 
D)  56 cups 
E)  8 cups 
A)  512 cups 
B)  0.13 cup 
C)  72 cups 
D)  56 cups 
E)  8 cups

Question 8

At 20°C the density of mercury is 13.6 g/cm3. What is the mass of 97.8 mL of mercury at 20°C?

Accepted Answer

A)    g 
B)  7.19 g 
C)  1.00 g/mL 
D)  0.139 g 
E)  none of these 
A)    g 
B)  7.19 g 
C)  1.00 g/mL 
D)  0.139 g 
E)  none of these

Question 9

Convert 943.4 m to decimeters.

Accepted Answer

A)    dm 
B)  94.34 dm 
C)  9.434 dm 
D)    dm 
E)  none of these 
A)    dm 
B)  94.34 dm 
C)  9.434 dm 
D)    dm 
E)  none of these

Question 10

A chemist needs 18.3 g of bromine for an experiment. What volume should she use? (Density of bromine = 3.12 g/cm3.)

Accepted Answer

A)  0.170 mL 
B)  18.3 mL 
C)  57.1 mL 
D)  15.2 mL 
E)  5.87 mL 
A)  0.170 mL 
B)  18.3 mL 
C)  57.1 mL 
D)  15.2 mL 
E)  5.87 mL

Question 11

Using the rules of significant figures, calculate the following:
70 + 4.461
a.
70
b.
75
c.
74.46
d.
74.461
e.
74

Accepted Answer

The answer of Using the rules of significant figures, calculate...

Question 12

How many significant figures are in the number 34.00500?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
E)  7 
A)  3 
B)  4 
C)  5 
D)  6 
E)  7

Question 13

Convert: 24.0 cc = ______________ mL.

Accepted Answer

A)  240 mL 
B)    mL 
C)  2.40 mL 
D)  24.0 mL 
E)  0.240 mL 
A)  240 mL 
B)    mL 
C)  2.40 mL 
D)  24.0 mL 
E)  0.240 mL

Question 14

Convert: -47.9°C = ______________ °F.

Accepted Answer

A)  -118.2°F 
B)  5.4°F 
C)  -54.2°F 
D)  -58.6°F 
E)  -86.2°F 
A)  -118.2°F 
B)  5.4°F 
C)  -54.2°F 
D)  -58.6°F 
E)  -86.2°F

Question 15

Convert 949.0 L to milliliters.

Accepted Answer

A)  0.9490 mL 
B)  9.490 mL 
C)  949.0 mL 
D)    mL 
E)    mL 
A)  0.9490 mL 
B)  9.490 mL 
C)  949.0 mL 
D)    mL 
E)    mL

Question 16

What is the Celsius equivalent of 436.5 K?

Accepted Answer

A)  709.5°C 
B)  817.7°C 
C)  224.7°C 
D)  785.7°C 
E)  163.5°C 
A)  709.5°C 
B)  817.7°C 
C)  224.7°C 
D)  785.7°C 
E)  163.5°C

Question 17

The density of gold is 19.3 g/mL. What is the volume of a gold nugget that weighs 68.7 g?

Accepted Answer

A)    mL 
B)  3.56 mL 
C)  0.281 mL 
D)  49.4 mL 
E)  none of these 
A)    mL 
B)  3.56 mL 
C)  0.281 mL 
D)  49.4 mL 
E)  none of these

Question 18

Convert 643.5 mi to kilometers (1 m = 1.094 yd; 1 mi = 1760. yd).

Accepted Answer

A)  4.000 * 10-4 km 
B)  1.035 *106 km 
C)  704.0 km 
D)  3.656 * 10-1 km 
E)  1.035 * 103 km 
A)  4.000 * 10-4 km 
B)  1.035 *106 km 
C)  704.0 km 
D)  3.656 * 10-1 km 
E)  1.035 * 103 km

Question 19

An object is 153.8 inches in height. Express this height in feet.

Accepted Answer

A)  0.07802 ft 
B)  1846 ft 
C)  60.55 ft 
D)  390.7 ft 
E)  12.82 ft 
A)  0.07802 ft 
B)  1846 ft 
C)  60.55 ft 
D)  390.7 ft 
E)  12.82 ft

Question 20

How many significant figures are in the measurement 0.2010 g?

Accepted Answer

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

Exam 2: Measurements and Calculations

How many significant figures are in the number 0.00204?

The number 3.00183 rounded to four significant figures is a. 3.002 b. 3.001 c. 3.000 d. 3.183 e. none of these

Write the number 345.626 in scientific notation.

Density is an example of a

How many quarts are in a 11.6-gal cooler of fruit punch? (1 gal = 4 qt)

The volume (in milliliters) occupied by 41.9 g of mercury (density = 13.6 g/mL) is

How many cups are in a 64-oz pitcher of lemonade? (8 fluid oz = 1 cup)

At 20°C the density of mercury is 13.6 g/cm3. What is the mass of 97.8 mL of mercury at 20°C?

Convert 943.4 m to decimeters.

A chemist needs 18.3 g of bromine for an experiment. What volume should she use? (Density of bromine = 3.12 g/cm3.)

Using the rules of significant figures, calculate the following: 70 + 4.461 a. 70 b. 75 c. 74.46 d. 74.461 e. 74

How many significant figures are in the number 34.00500?

Convert: 24.0 cc = ______________ mL.

Convert: -47.9°C = ______________ °F.

Convert 949.0 L to milliliters.

What is the Celsius equivalent of 436.5 K?

The density of gold is 19.3 g/mL. What is the volume of a gold nugget that weighs 68.7 g?

Convert 643.5 mi to kilometers (1 m = 1.094 yd; 1 mi = 1760. yd).

An object is 153.8 inches in height. Express this height in feet.

How many significant figures are in the measurement 0.2010 g?

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

At 20°C the density of mercury is 13.6 g/cm³. What is the mass of 97.8 mL of mercury at 20°C?

A chemist needs 18.3 g of bromine for an experiment. What volume should she use? (Density of bromine = 3.12 g/cm³.)