Question 1

Which of the following is the basic unit of mass in the SI?

Accepted Answer

A) pound 
B) kilogram 
C) microgram 
D) gram 
E) milligram 
A) pound 
B) kilogram 
C) microgram 
D) gram 
E) milligram B

Question 2

What is the mass of 2.00 L of an intravenous glucose solution with a density of 1.15 g/mL?

Accepted Answer

A) 0.015 kg 
B) 2.30 kg 
C) 0.58 kg 
D) 1.15 kg 
E) 0.023 kg 
A) 0.015 kg 
B) 2.30 kg 
C) 0.58 kg 
D) 1.15 kg 
E) 0.023 kg B

Question 3

What is the correct answer for the calculation   ?

Accepted Answer

A) 1.52 
B) 0.66 
C) 0.65645 
D) 1.5 
E) 0.656 
A) 1.52 
B) 0.66 
C) 0.65645 
D) 1.5 
E) 0.656 B

Question 4

A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported?

Accepted Answer

A) 424 
B) 423.6 
C) 423.7 
D) 420 
E) 423 
A) 424 
B) 423.6 
C) 423.7 
D) 420 
E) 423

Question 5

Which of the following is the largest unit?

Accepted Answer

A) kilometer 
B) decimeter 
C) meter 
D) millimeter 
E) micrometer 
A) kilometer 
B) decimeter 
C) meter 
D) millimeter 
E) micrometer

Question 6

A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?

Accepted Answer

A) 1.33 g/mL 
B) 0.752 g/mL 
C) 0.663 g/mL 
D) 1.00 g/mL 
E) 1330 g/mL 
A) 1.33 g/mL 
B) 0.752 g/mL 
C) 0.663 g/mL 
D) 1.00 g/mL 
E) 1330 g/mL

Question 7

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

Question 8

In which of the following is the metric unit paired with its correct abbreviation?

Accepted Answer

A) kilogram / cg 
B) centimeter / km 
C) milliliter / mL 
D) microgram / mg 
E) gram / gm 
A) kilogram / cg 
B) centimeter / km 
C) milliliter / mL 
D) microgram / mg 
E) gram / gm

Question 9

The EPA limit for lead in the soil of play areas is 400 ppm. This is the same as

Accepted Answer

A)  400 µg lead in each kilogram of soil. 
B)  400 mg lead in each kilogram of soil. 
C)  400 mg lead in each gram of soil. 
D)  400 µg lead in each milligram of soil. 
E)  400 g lead in each kilogram of soil. 
A)  400 µg lead in each kilogram of soil. 
B)  400 mg lead in each kilogram of soil. 
C)  400 mg lead in each gram of soil. 
D)  400 µg lead in each milligram of soil. 
E)  400 g lead in each kilogram of soil.

Question 10

How many pounds are in 3.5 kg?

Accepted Answer

A) 7.7 lb 
B) 1.6 lb 
C) 1.59 lb 
D) 7.70 lb 
E) 0.629 lb 
A) 7.7 lb 
B) 1.6 lb 
C) 1.59 lb 
D) 7.70 lb 
E) 0.629 lb

Question 11

What is the correct answer for the calculation of a volume (in mL) with measured numbers   ?

Accepted Answer

A) 57 mL 
B) 0.223 mL 
C) 14 mL 
D) 0.22 mL 
E) 14.3 mL 
A) 57 mL 
B) 0.223 mL 
C) 14 mL 
D) 0.22 mL 
E) 14.3 mL

Question 12

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 13

A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?

Accepted Answer

A) 3.0 mL 
B) 0.0063 mL 
C) 2.5 mL 
D) 0.0025 mL 
E) 6.3 mL 
A) 3.0 mL 
B) 0.0063 mL 
C) 2.5 mL 
D) 0.0025 mL 
E) 6.3 mL

Question 14

When 2610 + 11.7 + 0.22 are added, which of the following expresses the answer to the correct number of decimal places?

Accepted Answer

A) 2621.92 
B) 2620 
C) 2600 
D) 2621.9 
E) 2621 
A) 2621.92 
B) 2620 
C) 2600 
D) 2621.9 
E) 2621

Question 15

What is 6.5 m converted to inches?

Accepted Answer

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

Question 16

How many significant figures are in the measured number 0.00208 m?

Accepted Answer

A) two 
B) five 
C) six 
D) three 
E) four 
A) two 
B) five 
C) six 
D) three 
E) four

Question 17

The density of a solution is 0.847 g/mL. Its specific gravity is

Accepted Answer

A) 1.2. 
B) 11.8. 
C) 1.18. 
D) 0.118. 
E) 0.847. 
A) 1.2. 
B) 11.8. 
C) 1.18. 
D) 0.118. 
E) 0.847.

Question 18

Which of the following examples illustrates a number that is correctly rounded to three significant figures?

Accepted Answer

A) 20.0332 grams to 20.0 grams 
B) 4.05438 grams to 4.054 grams 
C) 109,526 grams to 109 500 grams 
D) 0.03954 grams to 0.040 grams 
E) 103.692 grams to 103.7 grams 
A) 20.0332 grams to 20.0 grams 
B) 4.05438 grams to 4.054 grams 
C) 109,526 grams to 109 500 grams 
D) 0.03954 grams to 0.040 grams 
E) 103.692 grams to 103.7 grams

Question 19

The number of significant figures in the measurement of 45.030 mm is

Accepted Answer

A) none. 
B) three. 
C) four. 
D) five. 
E) six. 
A) none. 
B) three. 
C) four. 
D) five. 
E) six.

Question 20

The specific gravity of a solution is 1.18. Its density is

Accepted Answer

A) 0.118 g/mL. 
B) 11.8 g/mL. 
C) 0.847 g/mL. 
D) 1.2 g/mL. 
E) 1.18 g/mL. 
A) 0.118 g/mL. 
B) 11.8 g/mL. 
C) 0.847 g/mL. 
D) 1.2 g/mL. 
E) 1.18 g/mL.

Exam 2: Chemistry and Measurements

Which of the following is the basic unit of mass in the SI?

What is the mass of 2.00 L of an intravenous glucose solution with a density of 1.15 g/mL?

What is the correct answer for the calculation ?

A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported?

Which of the following is the largest unit?

A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?

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

In which of the following is the metric unit paired with its correct abbreviation?

The EPA limit for lead in the soil of play areas is 400 ppm. This is the same as

How many pounds are in 3.5 kg?

What is the correct answer for the calculation of a volume (in mL) with measured numbers ?

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

A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?

When 2610 + 11.7 + 0.22 are added, which of the following expresses the answer to the correct number of decimal places?

What is 6.5 m converted to inches?

How many significant figures are in the measured number 0.00208 m?

The density of a solution is 0.847 g/mL. Its specific gravity is

Which of the following examples illustrates a number that is correctly rounded to three significant figures?

The number of significant figures in the measurement of 45.030 mm is

The specific gravity of a solution is 1.18. Its density is

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