Question 1

Which of the following is a measurement of temperature in the metric system?

Accepted Answer

A) oz 
B) lb 
C) Celsius 
D) kilogram 
E) meter 
A) oz 
B) lb 
C) Celsius 
D) kilogram 
E) meter

Question 2

State the number of significant figures in each of the following measurements.
-9.00 × 106 g

Accepted Answer

Question 3

How many liters of soft drink are there in 5.25 qt?

Accepted Answer

A) 4950 L 
B) 55.7 L 
C) 4.95 L 
D) 5.57 L 
E) 5.0 L 
A) 4950 L 
B) 55.7 L 
C) 4.95 L 
D) 5.57 L 
E) 5.0 L

Question 4

A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume of 77.0 mL. What is the density of the gold?

Accepted Answer

A) 10.4 g/mL 
B) 6.77 g/mL 
C) 1.00 g/mL 
D) 0.0518 g/mL 
E) 19.3 g/mL 
A) 10.4 g/mL 
B) 6.77 g/mL 
C) 1.00 g/mL 
D) 0.0518 g/mL 
E) 19.3 g/mL

Question 5

What is 6.5 m converted to inches?

Accepted Answer

A) 1700 in 
B) 1651 in 
C) 39 in 
D) 260 in 
E) 255.9 in 
A) 1700 in 
B) 1651 in 
C) 39 in 
D) 260 in 
E) 255.9 in

Question 6

A researcher added three samples of sodium chloride solution; the volumes were: 0.351 mL, 0.350 mL and 0.349 mL. The total volume should be reported as

Accepted Answer

A) 1.05 mL. 
B) 1.0 mL. 
C) 11 mL. 
D) 1.050 mL. 
E) 1.0500 mL. 
A) 1.05 mL. 
B) 1.0 mL. 
C) 11 mL. 
D) 1.050 mL. 
E) 1.0500 mL.

Question 7

When the measured number 675 is added to the measured number 87.10, the answer should be rounded to the ones place.

Accepted Answer

A) True 
 B)False

Question 8

The number 650 000 has two significant figures.

Accepted Answer

A) True 
 B)False

Question 9

Which one of the following substances will float in gasoline, which has a density of 0.66 g/mL?

Accepted Answer

A) table salt (density = 2.16 g/mL) 
B) balsa wood (density = 0.16 g/mL) 
C) sugar (density = 1.59 g/mL) 
D) aluminum (density = 2.70 g/mL) 
E) mercury (density = 13.6 g/mL) 
A) table salt (density = 2.16 g/mL) 
B) balsa wood (density = 0.16 g/mL) 
C) sugar (density = 1.59 g/mL) 
D) aluminum (density = 2.70 g/mL) 
E) mercury (density = 13.6 g/mL)

Question 10

Round off each of the following to three significant figures.
-25 225

Accepted Answer

The answer of Round off each of the following to...

Question 11

A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is

Accepted Answer

A) 19 mg. 
B) 53 mg. 
C) 1.6 mg. 
D) 5.0 mg. 
E) 0.59 mg. 
A) 19 mg. 
B) 53 mg. 
C) 1.6 mg. 
D) 5.0 mg. 
E) 0.59 mg.

Question 12

The ratio of the mass of a substance to its volume is its

Accepted Answer

A) specific gravity. 
B) density. 
C) buoyancy. 
D) weight. 
E) conversion factor. 
A) specific gravity. 
B) density. 
C) buoyancy. 
D) weight. 
E) conversion factor.

Question 13

The density of water is 1 kg/mL.

Accepted Answer

A) True 
 B)False

Question 14

According to the United States Food and Drug Administration, the recommended daily requirement of protein is 44 g. This is ________ oz of protein.

Accepted Answer

A) 1248.5 
B) 320 000 
C) 1.6 
D) 0.0605 
E) 150 000 
A) 1248.5 
B) 320 000 
C) 1.6 
D) 0.0605 
E) 150 000

Question 15

What is the answer, with the correct number of decimal places, for this problem? 4.392 g + 102.40 g + 2.51 g =

Accepted Answer

A) 109.302 g 
B) 109 g 
C) 109.3 g 
D) 109.30 g 
E) 110 g 
A) 109.302 g 
B) 109 g 
C) 109.3 g 
D) 109.30 g 
E) 110 g

Question 16

What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL?

Accepted Answer

A) 67.1 g 
B) 41.9 g 
C) 42 g 
D) 67 g 
E) 53 g 
A) 67.1 g 
B) 41.9 g 
C) 42 g 
D) 67 g 
E) 53 g

Question 17

State the number of significant figures in each of the following measurements.
-0.008 090 cm

Accepted Answer

The answer of State the number of significant figures in...

Question 18

State the number of significant figures in each of the following measurements.
-0.0005 L

Accepted Answer

The answer of State the number of significant figures in...

Question 19

How many kilograms are in 30.4 lb?

Accepted Answer

A) 13.8 kg 
B) 14 kg 
C) 67 kg 
D) 66.88 kg 
E) 66.9 kg 
A) 13.8 kg 
B) 14 kg 
C) 67 kg 
D) 66.88 kg 
E) 66.9 kg

Question 20

There are 1000 μg in a mg.

Accepted Answer

A) True 
 B)False

Exam 2: Chemistry and Measurements

Which of the following is a measurement of temperature in the metric system?

State the number of significant figures in each of the following measurements. -9.00 × 106 g

How many liters of soft drink are there in 5.25 qt?

A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume of 77.0 mL. What is the density of the gold?

What is 6.5 m converted to inches?

A researcher added three samples of sodium chloride solution; the volumes were: 0.351 mL, 0.350 mL and 0.349 mL. The total volume should be reported as

When the measured number 675 is added to the measured number 87.10, the answer should be rounded to the ones place.

The number 650 000 has two significant figures.

Which one of the following substances will float in gasoline, which has a density of 0.66 g/mL?

Round off each of the following to three significant figures. -25 225

A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is

The ratio of the mass of a substance to its volume is its

The density of water is 1 kg/mL.

According to the United States Food and Drug Administration, the recommended daily requirement of protein is 44 g. This is ________ oz of protein.

What is the answer, with the correct number of decimal places, for this problem? 4.392 g + 102.40 g + 2.51 g =

What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL?

State the number of significant figures in each of the following measurements. -0.008 090 cm

State the number of significant figures in each of the following measurements. -0.0005 L

How many kilograms are in 30.4 lb?

There are 1000 μg in a mg.

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State the number of significant figures in each of the following measurements. -9.00 × 10⁶ g