Question 1

A 60-kg astronaut travels from the earth to the moon.If the gravitational attraction on the moon is   of that on earth,what will be her mass on the moon?

Accepted Answer

A) 0 kg 
B) 10 kg 
C) 60 kg 
D) 360 kg 
E) 3600 kg 
A) 0 kg 
B) 10 kg 
C) 60 kg 
D) 360 kg 
E) 3600 kg C

Question 2

Round off each of the following quantities to two significant figures:
i.32,175,000 µm
ii.3.3000 × 107 kg
iii.0.04721 m
iv.8751 cm3

Accepted Answer

A) i. 3.2 µm ii. 3.3 × 107 kg iii. 0.047 m iv. 8.8 × 103 cm3 
B) i. 3.2 × 107 µm ii. 3.3 × 107 kg iii. 0.047 m iv. 8.8 × 103 cm3 
C) i. 3.2 × 107 µm ii. 3.3 × 107 kg iii. 0.047 m iv. 8.7 × 103 cm3 
D) i. 3.2 × 107 µm ii. 3.3 × 107 kg iii. 0.05 m iv. 8.8 × 103 cm3 
E) i. 3.2 × 107 µm ii. 3.3 kg iii. 0.047 m iv. 8.8 × 103 cm3 
A) i. 3.2 µm ii. 3.3 × 107 kg iii. 0.047 m iv. 8.8 × 103 cm3 
B) i. 3.2 × 107 µm ii. 3.3 × 107 kg iii. 0.047 m iv. 8.8 × 103 cm3 
C) i. 3.2 × 107 µm ii. 3.3 × 107 kg iii. 0.047 m iv. 8.7 × 103 cm3 
D) i. 3.2 × 107 µm ii. 3.3 × 107 kg iii. 0.05 m iv. 8.8 × 103 cm3 
E) i. 3.2 × 107 µm ii. 3.3 kg iii. 0.047 m iv. 8.8 × 103 cm3 B

Question 3

Which of the following numbers are correctly expressed in both exponential notation and ordinary decimal form?
i.4.09 × 10-3 = 4090
ii.3.72 × 10-5 = 0.0000372
iii.62,800 = 6.28 × 104
iv.5,910,000 = 5.91 × 10-6

Accepted Answer

A) i and ii 
B) i and iii 
C) ii and iii 
D) iii and iv 
E) All are incorrect 
A) i and ii 
B) i and iii 
C) ii and iii 
D) iii and iv 
E) All are incorrect C

Question 4

A filled shipping box weighs 12 lb.How many kilograms is this? 1 lb = 453.59237 g

Accepted Answer

A) 5.4 kg 
B) 5.4 × 103 kg 
C) 5.4 × 106 kg 
D) 26 kg 
E) 2.6 × 10-5 kg 
A) 5.4 kg 
B) 5.4 × 103 kg 
C) 5.4 × 106 kg 
D) 26 kg 
E) 2.6 × 10-5 kg

Question 5

Which of the following is/are metric units of mass?
i.Pound
ii.Gram
iii.Ounce
iv.Kilogram
v.Centigram

Accepted Answer

A) ii only 
B) iv only 
C) ii and iv 
D) i and iii 
E) ii, iv, and v 
A) ii only 
B) iv only 
C) ii and iv 
D) i and iii 
E) ii, iv, and v

Question 6

Which of the following numbers are correctly expressed in ordinary decimal form?
i.6.21 × 105 = 621,000
ii.7.28 × 106 = 0.00000728
iii.9.03 × 10-4 = 0.000903
iv.1.12 × 10-3 = 1120

Accepted Answer

A) i and ii 
B) i and iii 
C) ii and iv 
D) iii and iv 
E) All are incorrect 
A) i and ii 
B) i and iii 
C) ii and iv 
D) iii and iv 
E) All are incorrect

Question 7

The melting point of iron is 1535.0°C.What is the Fahrenheit equivalent of this temperature?

Accepted Answer

A) 821.0°F 
B) 885.0°F 
C) 2731.0°F 
D) 2795.0°F 
E) 2821.0°F 
A) 821.0°F 
B) 885.0°F 
C) 2731.0°F 
D) 2795.0°F 
E) 2821.0°F

Question 8

Which of the following quantities is/are correctly rounded to three significant figures?
i.0.0277 mL = 0.028 mL
ii.2.1295 km = 2.12 km
iii.3.986 × 104 cm3 = 3.99 × 104 cm3
iv.0.003398216 in = 0.003 in

Accepted Answer

A) i, ii, and iv 
B) ii and iii 
C) iii only 
D) All are correctly rounded to three significant figures 
E) None is correctly rounded to three significant figures 
A) i, ii, and iv 
B) ii and iii 
C) iii only 
D) All are correctly rounded to three significant figures 
E) None is correctly rounded to three significant figures

Question 9

Which of the following is the best mathematical expression to represent the fact that the pressure of a gas (P),at constant volume and temperature,is directly proportional to the mass of that gas (m)?

Accepted Answer

A) P ∝ m 
B) P = m 
C) Pm 
D) P ≈ m 
E) P ∈ m 
A) P ∝ m 
B) P = m 
C) Pm 
D) P ≈ m 
E) P ∈ m

Question 10

Convert 1.57 g to kg,cg,and mg.

Accepted Answer

A) 1570 kg, 0.0157 cg, 0.00157 mg 
B) 0.00157 kg, 0.0157 cg, 1570 mg 
C) 0.00157 kg, 157 cg, 1570 mg 
D) 157 kg, 1570 cg, 0.00157 mg 
E) 1570 kg, 0.00157 cg, 157 mg 
A) 1570 kg, 0.0157 cg, 0.00157 mg 
B) 0.00157 kg, 0.0157 cg, 1570 mg 
C) 0.00157 kg, 157 cg, 1570 mg 
D) 157 kg, 1570 cg, 0.00157 mg 
E) 1570 kg, 0.00157 cg, 157 mg

Question 11

Distance and time are directly proportional for an object moving a constant speed.What is the value of the proportionality constant for a car that travels 133 miles in 2.5 hours?

Accepted Answer

A) 3.3 × 102 mi • hr 
B) 1.4 × 102 mi • hr 
C) 1.3 × 102 mi • hr 
D) 53 mi/hr 
E) 0.019 hr/mi 
A) 3.3 × 102 mi • hr 
B) 1.4 × 102 mi • hr 
C) 1.3 × 102 mi • hr 
D) 53 mi/hr 
E) 0.019 hr/mi

Question 12

Consider the three thermometers shown in the image.   Which of the following equations correctly represents the equation relating reading on the A thermometer to the B thermometer?

Accepted Answer

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

Question 13

Which of the following is/are metric units of volume?
i.mL
ii.L
iii.cm3
iv.m
v.kg

Accepted Answer

A) i and ii 
B) i, ii, and iii 
C) ii only 
D) iv and v 
E) All are metric units of volume 
A) i and ii 
B) i, ii, and iii 
C) ii only 
D) iv and v 
E) All are metric units of volume

Question 14

Convert 5.01 × 103 cm to km,m,and mm.

Accepted Answer

A) 5.01 × 10-2 km, 5.01 × 101 m, 5.01 × 104 mm 
B) 5.01 × 10-2 km, 5.01 × 101 m, 5.01 × 103 mm 
C) 5.01 × 102 km, 5.01 × 105 m, 5.01 × 108 mm 
D) 5.01 × 104 km, 5.01 × 101 m, 5.01 × 10-2 mm 
E) 5.01 × 108 km, 5.01 × 105 m, 5.01 × 102 mm 
A) 5.01 × 10-2 km, 5.01 × 101 m, 5.01 × 104 mm 
B) 5.01 × 10-2 km, 5.01 × 101 m, 5.01 × 103 mm 
C) 5.01 × 102 km, 5.01 × 105 m, 5.01 × 108 mm 
D) 5.01 × 104 km, 5.01 × 101 m, 5.01 × 10-2 mm 
E) 5.01 × 108 km, 5.01 × 105 m, 5.01 × 102 mm

Question 15

Which of the following would be the best unit to measure the mass of a molecule of sugar?

Accepted Answer

A) pg 
B) Mg 
C) kg 
D) g 
E) mg 
A) pg 
B) Mg 
C) kg 
D) g 
E) mg

Question 16

Find the mass of 35.7 mL of benzene if its density is 0.877 g/mL.

Accepted Answer

A) 2.46 × 10-2 g 
B) 3.19 × 10-2 g 
C) 40.7 g 
D) 35.7 g 
E) 31.3 g 
A) 2.46 × 10-2 g 
B) 3.19 × 10-2 g 
C) 40.7 g 
D) 35.7 g 
E) 31.3 g

Question 17

Convert 9.16 kg to Gg,hg,and µg.1 Gg = 109 g,1 hg = 102 g,1 µg = 10-6 g

Accepted Answer

A) 9.16 × 1012 Gg, 9.16 × 105 hg, 9.16 × 10-3 µg 
B) 9.16 × 10-12 Gg, 9.16 × 10-5 hg, 9.16 × 103 µg 
C) 9.16 × 106 Gg, 9.16 × 10-1 hg, 9.16 × 10-9 µg 
D) 9.16 × 10-6 Gg, 9.16 × 101 hg, 9.16 × 109 µg 
E) 9.16 × 10-9 Gg, 9.16 × 10-2 hg, 9.16 × 106 µg 
A) 9.16 × 1012 Gg, 9.16 × 105 hg, 9.16 × 10-3 µg 
B) 9.16 × 10-12 Gg, 9.16 × 10-5 hg, 9.16 × 103 µg 
C) 9.16 × 106 Gg, 9.16 × 10-1 hg, 9.16 × 10-9 µg 
D) 9.16 × 10-6 Gg, 9.16 × 101 hg, 9.16 × 109 µg 
E) 9.16 × 10-9 Gg, 9.16 × 10-2 hg, 9.16 × 106 µg

Question 18

What is the volume of a 5.00 g pure aluminum cylinder if its density is 2.70 g/cm3?

Accepted Answer

A) 5.00 cm3 
B) 1.85 cm3 
C) 13.5 cm3 
D) 0.540 cm3 
E) 7.41 × 10-2 cm3 
A) 5.00 cm3 
B) 1.85 cm3 
C) 13.5 cm3 
D) 0.540 cm3 
E) 7.41 × 10-2 cm3

Question 19

The defining equation for density (D)is D =   .Which of the following represents units in which density might be expressed?

Accepted Answer

A) liters/seconds 
B) liters/grams 
C) milligrams/miles 
D) kilograms/pints 
E) density/cubic centimeters 
A) liters/seconds 
B) liters/grams 
C) milligrams/miles 
D) kilograms/pints 
E) density/cubic centimeters

Question 20

The Willis Tower in Chicago is 1451 ft tall.How high is this in meters? 1 in.= 2.54 cm

Accepted Answer

A) 68.55 m 
B) 0.4760 m 
C) 4.423 × 106 m 
D) 4.423 × 104 m 
E) 442.3 m 
A) 68.55 m 
B) 0.4760 m 
C) 4.423 × 106 m 
D) 4.423 × 104 m 
E) 442.3 m

Exam 3: Measurement and Chemical Calculations

A 60-kg astronaut travels from the earth to the moon.If the gravitational attraction on the moon is of that on earth,what will be her mass on the moon?

Round off each of the following quantities to two significant figures: i.32,175,000 µm ii.3.3000 × 107 kg iii.0.04721 m iv.8751 cm3

Which of the following numbers are correctly expressed in both exponential notation and ordinary decimal form? i.4.09 × 10-3 = 4090 ii.3.72 × 10-5 = 0.0000372 iii.62,800 = 6.28 × 104 iv.5,910,000 = 5.91 × 10-6

A filled shipping box weighs 12 lb.How many kilograms is this? 1 lb = 453.59237 g

Which of the following is/are metric units of mass? i.Pound ii.Gram iii.Ounce iv.Kilogram v.Centigram

Which of the following numbers are correctly expressed in ordinary decimal form? i.6.21 × 105 = 621,000 ii.7.28 × 106 = 0.00000728 iii.9.03 × 10-4 = 0.000903 iv.1.12 × 10-3 = 1120

The melting point of iron is 1535.0°C.What is the Fahrenheit equivalent of this temperature?

Which of the following quantities is/are correctly rounded to three significant figures? i.0.0277 mL = 0.028 mL ii.2.1295 km = 2.12 km iii.3.986 × 104 cm3 = 3.99 × 104 cm3 iv.0.003398216 in = 0.003 in

Which of the following is the best mathematical expression to represent the fact that the pressure of a gas (P),at constant volume and temperature,is directly proportional to the mass of that gas (m)?

Convert 1.57 g to kg,cg,and mg.

Distance and time are directly proportional for an object moving a constant speed.What is the value of the proportionality constant for a car that travels 133 miles in 2.5 hours?

Consider the three thermometers shown in the image. Which of the following equations correctly represents the equation relating reading on the A thermometer to the B thermometer?

Which of the following is/are metric units of volume? i.mL ii.L iii.cm3 iv.m v.kg

Convert 5.01 × 103 cm to km,m,and mm.

Which of the following would be the best unit to measure the mass of a molecule of sugar?

Find the mass of 35.7 mL of benzene if its density is 0.877 g/mL.

Convert 9.16 kg to Gg,hg,and µg.1 Gg = 109 g,1 hg = 102 g,1 µg = 10-6 g

What is the volume of a 5.00 g pure aluminum cylinder if its density is 2.70 g/cm3?

The defining equation for density (D)is D = .Which of the following represents units in which density might be expressed?

The Willis Tower in Chicago is 1451 ft tall.How high is this in meters? 1 in.= 2.54 cm

Matter and Energy

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Gases, Liquids, and Solids

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Oxidationreduction Electron Transferreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Round off each of the following quantities to two significant figures: i.32,175,000 µm ii.3.3000 × 10⁷ kg iii.0.04721 m iv.8751 cm³

Which of the following numbers are correctly expressed in both exponential notation and ordinary decimal form? i.4.09 × 10^-3 = 4090 ii.3.72 × 10^-5 = 0.0000372 iii.62,800 = 6.28 × 10⁴ iv.5,910,000 = 5.91 × 10^-6

Which of the following numbers are correctly expressed in ordinary decimal form? i.6.21 × 10⁵ = 621,000 ii.7.28 × 10⁶ = 0.00000728 iii.9.03 × 10^-4 = 0.000903 iv.1.12 × 10^-3 = 1120

Which of the following quantities is/are correctly rounded to three significant figures? i.0.0277 mL = 0.028 mL ii.2.1295 km = 2.12 km iii.3.986 × 10⁴ cm³ = 3.99 × 10⁴ cm³ iv.0.003398216 in = 0.003 in

Which of the following is/are metric units of volume? i.mL ii.L iii.cm³ iv.m v.kg

Convert 5.01 × 10³ cm to km,m,and mm.

Convert 9.16 kg to Gg,hg,and µg.1 Gg = 10⁹ g,1 hg = 10² g,1 µg = 10^-6 g

What is the volume of a 5.00 g pure aluminum cylinder if its density is 2.70 g/cm³?