Question 1

A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is

Accepted Answer

A) 1.014 g/mL. 
B) 0.986 g/L. 
C) 1.01. 
D) 0.986. 
E) 50.7. 
A) 1.014 g/mL. 
B) 0.986 g/L. 
C) 1.01. 
D) 0.986. 
E) 50.7.

Question 2

How many pounds are in 3.5 kg?

Accepted Answer

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

Question 3

A μg is larger than a mg.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following measurements has three significant figures?

Accepted Answer

A) 0.005 m 
B) 510 m 
C) 0.510 m 
D) 0.051 m 
E) 5100 m 
A) 0.005 m 
B) 510 m 
C) 0.510 m 
D) 0.051 m 
E) 5100 m

Question 5

The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is

Accepted Answer

A) 13.071 g. 
B) 13 g. 
C) 13.0 g. 
D) 10 g. 
E) 13.1 g. 
A) 13.071 g. 
B) 13 g. 
C) 13.0 g. 
D) 10 g. 
E) 13.1 g.

Question 6

Which of the answers for the following conversions contains the correct number of significant figures?

Accepted Answer

A) 2.543 m ×  = 100.1942 in 
B) 2 L ×  = 2.12 qt 
C) 24.95 min ×  = 0.4158 hr 
D) 12.0 ft ×  × = 370 cm 
E) 24.0 kg ×  = 11 lb 
A) 2.543 m ×  = 100.1942 in 
B) 2 L ×  = 2.12 qt 
C) 24.95 min ×  = 0.4158 hr 
D) 12.0 ft ×  × = 370 cm 
E) 24.0 kg ×  = 11 lb

Question 7

Round off each of the following to three significant figures.
-8.3158

Accepted Answer

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

Question 8

What is the correct answer for the calculation   ?

Accepted Answer

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

Question 9

5.21 cm is the same distance as

Accepted Answer

A) 0.0521 m. 
B) 52.1 dm. 
C) 5.21 mm. 
D) 0.00521 km. 
E) 5210 m. 
A) 0.0521 m. 
B) 52.1 dm. 
C) 5.21 mm. 
D) 0.00521 km. 
E) 5210 m.

Question 10

The liter is a unit of volume in the metric system.

Accepted Answer

A) True 
 B)False

A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is

How many pounds are in 3.5 kg?

A μg is larger than a mg.

Which of the following measurements has three significant figures?

The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is

Which of the answers for the following conversions contains the correct number of significant figures?

Round off each of the following to three significant figures. -8.3158

What is the correct answer for the calculation ?

5.21 cm is the same distance as

The liter is a unit of volume in the metric system.

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Exam 2: Chemistry and Measurements

A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is

How many pounds are in 3.5 kg?

A μg is larger than a mg.

Which of the following measurements has three significant figures?

The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is

Which of the answers for the following conversions contains the correct number of significant figures?

Round off each of the following to three significant figures. -8.3158

What is the correct answer for the calculation ?

5.21 cm is the same distance as

The liter is a unit of volume in the metric system.

Chemistry in Our Lives

Energy and Matter

Atoms

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters