Question 1

Convert 10 cm3 to m3.

Accepted Answer

A) 1 × 10-5 m3 
B) 1 × 10-1 m3 
C) 1 × 103 m3 
D) 1 × 107 m3 
A) 1 × 10-5 m3 
B) 1 × 10-1 m3 
C) 1 × 103 m3 
D) 1 × 107 m3

Question 2

What answer should be reported, with the correct number of significant figures, for the following calculation? 
10-4.68

Accepted Answer

A) 2.1 × 10-5 
B) 2 09 × 10-5 
C) 2 × 10-5 
D) 2.089 × 10-5 
E) 2.0893 × 10-5 
A) 2.1 × 10-5 
B) 2 09 × 10-5 
C) 2 × 10-5 
D) 2.089 × 10-5 
E) 2.0893 × 10-5

Question 3

A flash drive contains 4 gigabytes. How many bytes does it contain?

Accepted Answer

4 000 000 000 bytes,

Question 4

Ethanol has a freezing point of 159 K. What is the freezing point in °C?

Accepted Answer

A) -81 °C 
B) -78 °C 
C) -62 °C 
D) -114 °C 
E) -195 °C 
A) -81 °C 
B) -78 °C 
C) -62 °C 
D) -114 °C 
E) -195 °C

Question 5

Which of the following is an example of intensive properties?

Accepted Answer

A) density 
B) volume 
C) mass 
D) None of the above is an example of intensive properties. 
E) All of the above are examples of intensive properties. 
A) density 
B) volume 
C) mass 
D) None of the above is an example of intensive properties. 
E) All of the above are examples of intensive properties.

Question 6

Convert 4392 m3 to hm3.

Accepted Answer

A) 4.392 × 10-5 hm3 
B) 4.392 × 10-3 hm3 
C) 4.392 × 10-1 hm3 
D) 4.392 × 101 hm3 
E) 4.392 × 102 hm3 
A) 4.392 × 10-5 hm3 
B) 4.392 × 10-3 hm3 
C) 4.392 × 10-1 hm3 
D) 4.392 × 101 hm3 
E) 4.392 × 102 hm3

Question 7

Which of the following numbers has the greatest number of significant figures?

Accepted Answer

A) 0.5070 
B) 0.201 
C) 418000 
D) 6.02 × 1024 
A) 0.5070 
B) 0.201 
C) 418000 
D) 6.02 × 1024

Question 8

How many significant figures are in the measurement 0.0005890 g?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 9

How many significant figures are there in the answer to the following problem? 
56.4 + 0.8822 + 21

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 10

Ethanol has a boiling point of 351 K. What is the boiling point in °C?

Accepted Answer

A) 78 °C 
B) -195 °C 
C) 122 °C 
D) 62 °C 
E) 86 °C 
A) 78 °C 
B) -195 °C 
C) 122 °C 
D) 62 °C 
E) 86 °C

Question 11

The melting point of copper is 1984 °F. What is the melting point in K?

Accepted Answer

A) 1724 K 
B) 1631 K 
C) 1358 K 
D) 2257 K 
E) 1286 K 
A) 1724 K 
B) 1631 K 
C) 1358 K 
D) 2257 K 
E) 1286 K

Question 12

Determine the mass of an object that has a volume of 88.6 mL and a density of 9.77 g mL-1.

Accepted Answer

A) 298 g 
B) 1100 g 
C) 907 g 
D) 568 g 
E) 866 g 
A) 298 g 
B) 1100 g 
C) 907 g 
D) 568 g 
E) 866 g

Question 13

Convert 12.5 μL to L and express it in scientific notation.

Accepted Answer

A) 1.25 × 105 L 
B) 1.25 × 107 L 
C) 1.25 × 10-3 L 
D) 1.25 × 10-7 L 
E) 1.25 × 10-5 L 
A) 1.25 × 105 L 
B) 1.25 × 107 L 
C) 1.25 × 10-3 L 
D) 1.25 × 10-7 L 
E) 1.25 × 10-5 L

Question 14

I'm on a boat. It is travelling at 5.0 knots. What is the velocity in m s-1? (1 knot = 1.15078 miles per hour; 1 km = 0.6214 miles)

Accepted Answer

A) 2.6 m s-1 
B) 39 m s-1 
C) 1.9 m s-1 
D) 6.9 m s-1 
E) 0.83 m s-1 
A) 2.6 m s-1 
B) 39 m s-1 
C) 1.9 m s-1 
D) 6.9 m s-1 
E) 0.83 m s-1

Question 15

What answer should be reported, with the correct number of significant figures, for the following calculation?
 6.83192458 + log(6.7831 × 104)

Accepted Answer

A) 11.66335 
B) 11.663353 
C) 11.6634 
D) 11.6633528 
E) 11.663 
A) 11.66335 
B) 11.663353 
C) 11.6634 
D) 11.6633528 
E) 11.663

Question 16

How many dm are in 345 dam?

Accepted Answer

A) 0.345 dm 
B) 3.45 dm 
C) 3450 dm 
D) 34500 dm 
E) 345000 dm 
A) 0.345 dm 
B) 3.45 dm 
C) 3450 dm 
D) 34500 dm 
E) 345000 dm

Question 17

A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.79 g mL-1, 1.81 g mL-1, 1.80 g mL-1, 1.81 g mL-1. If the actual value for the density of the sugar solution is 1.80 g mL-1, which statement below best describes her results?

Accepted Answer

A) Her results are precise, but not accurate. 
B) Her results are accurate, but not precise. 
C) Her results are both precise and accurate 
D) Her results are neither precise nor accurate. 
E) It isn't possible to determine from the information given. 
A) Her results are precise, but not accurate. 
B) Her results are accurate, but not precise. 
C) Her results are both precise and accurate 
D) Her results are neither precise nor accurate. 
E) It isn't possible to determine from the information given.

Question 18

How many cm are in 22.2 ft?

Accepted Answer

A) 4.70 cm 
B) 105 cm 
C) 56.4 cm 
D) 677 cm 
E) 0.728 cm 
A) 4.70 cm 
B) 105 cm 
C) 56.4 cm 
D) 677 cm 
E) 0.728 cm

Question 19

What symbol is used to represent the factor 10-1?

Accepted Answer

A) M 
B) m 
C) μ 
D) d 
A) M 
B) m 
C) μ 
D) d

Question 20

Ethylene glycol is commonly used as antifreeze in the cooling systems of vehicles due to its low freezing point, 8.6 °F. What is the freezing point in K?

Accepted Answer

A) 280 K 
B) -13 K 
C) 260 K 
D) 273 K 
E) 240 K 
A) 280 K 
B) -13 K 
C) 260 K 
D) 273 K 
E) 240 K

Exam 1: Units of Measurement for Physical and Chemical Change

Convert 10 cm3 to m3.

What answer should be reported, with the correct number of significant figures, for the following calculation? 10-4.68

A flash drive contains 4 gigabytes. How many bytes does it contain?

Ethanol has a freezing point of 159 K. What is the freezing point in °C?

Which of the following is an example of intensive properties?

Convert 4392 m3 to hm3.

Which of the following numbers has the greatest number of significant figures?

How many significant figures are in the measurement 0.0005890 g?

How many significant figures are there in the answer to the following problem? 56.4 + 0.8822 + 21

Ethanol has a boiling point of 351 K. What is the boiling point in °C?

The melting point of copper is 1984 °F. What is the melting point in K?

Determine the mass of an object that has a volume of 88.6 mL and a density of 9.77 g mL-1.

Convert 12.5 μL to L and express it in scientific notation.

I'm on a boat. It is travelling at 5.0 knots. What is the velocity in m s-1? (1 knot = 1.15078 miles per hour; 1 km = 0.6214 miles)

What answer should be reported, with the correct number of significant figures, for the following calculation? 6.83192458 + log(6.7831 × 104)

How many dm are in 345 dam?

A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.79 g mL-1, 1.81 g mL-1, 1.80 g mL-1, 1.81 g mL-1. If the actual value for the density of the sugar solution is 1.80 g mL-1, which statement below best describes her results?

How many cm are in 22.2 ft?

What symbol is used to represent the factor 10-1?

Ethylene glycol is commonly used as antifreeze in the cooling systems of vehicles due to its low freezing point, 8.6 °F. What is the freezing point in K?

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

Convert 10 cm³ to m³.

What answer should be reported, with the correct number of significant figures, for the following calculation? 10^-4.68

Convert 4392 m³ to hm³.

Determine the mass of an object that has a volume of 88.6 mL and a density of 9.77 g mL^-1.

I'm on a boat. It is travelling at 5.0 knots. What is the velocity in m s^-1? (1 knot = 1.15078 miles per hour; 1 km = 0.6214 miles)

What answer should be reported, with the correct number of significant figures, for the following calculation? 6.83192458 + log(6.7831 × 10⁴)

A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.79 g mL^-1, 1.81 g mL^-1, 1.80 g mL^-1, 1.81 g mL^-¹. If the actual value for the density of the sugar solution is 1.80 g mL^-1, which statement below best describes her results?

What symbol is used to represent the factor 10^-1?