Question 1

What is the uncertainty associated with the measurement of 6.02 x 104?

Accepted Answer

A)  100 
B)  10 
C)  0.1 
D)  0.01 
A)  100 
B)  10 
C)  0.1 
D)  0.01 A

Question 2

Statements: (1) The measured number 2.410 F1F1F1S1F1F1F10 10-3 contains three significant figures.
(2) The specific heat of water is higher than that of most other substances.
(3) The equation 1 kg = 106 mg is a correct mathematical statement.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. B

Question 3

Which of the following statements concerning the three major temperature scales is correct?

Accepted Answer

A)  Kelvin temperatures are always positive. 
B)  The equation for converting from Celsius to Kelvin involves the number 273. 
C)  The freezing point of water has a lower numerical value on the Kelvin scale than on the Fahrenheit scale. 
D)  More than one correct response. 
E)  No correct response. 
A)  Kelvin temperatures are always positive. 
B)  The equation for converting from Celsius to Kelvin involves the number 273. 
C)  The freezing point of water has a lower numerical value on the Kelvin scale than on the Fahrenheit scale. 
D)  More than one correct response. 
E)  No correct response. D

Question 4

The correct answer obtained by dividing the measurement   by the measurement is

Accepted Answer

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

Question 5

Which of the following measured numbers contains three significant figures and has a magnitude of less than one?

Accepted Answer

A)  3.30 F1F1F1S1F1F1F10 105 
B)  3.00 F1F1F1S1F1F1F10 10-3 
C)  3.20 F1F1F1S1F1F1F10 10-4 
D)  more than one correct response 
E)  no correct response 
A)  3.30 F1F1F1S1F1F1F10 105 
B)  3.00 F1F1F1S1F1F1F10 10-3 
C)  3.20 F1F1F1S1F1F1F10 10-4 
D)  more than one correct response 
E)  no correct response

Question 6

To what decimal position should a measurement be recorded if the smallest markings on the measurement scale are tenths of a centimeter?

Accepted Answer

A)  to the closest centimeter 
B)  to the tenths of a centimeter 
C)  to the hundredths of a centimeter 
D)  to the thousandths of a centimeter 
A)  to the closest centimeter 
B)  to the tenths of a centimeter 
C)  to the hundredths of a centimeter 
D)  to the thousandths of a centimeter

Question 7

Which of the following statements concerning the measured number 0.3030 is correct?

Accepted Answer

A)  Only one of the zeros in the number is significant. 
B)  Rounded off to two significant figures the number becomes 0.30. 
C)  Expressed in scientific notation the number becomes 3.03 F1F1F1S1F1F1F10 10-1. 
D)  More than one correct response. 
E)  No correct response. 
A)  Only one of the zeros in the number is significant. 
B)  Rounded off to two significant figures the number becomes 0.30. 
C)  Expressed in scientific notation the number becomes 3.03 F1F1F1S1F1F1F10 10-1. 
D)  More than one correct response. 
E)  No correct response.

Question 8

In which of the following pairings of metric system prefix and power of ten is the pairing incorrect?

Accepted Answer

A)  kilo- and 10-3 
B)  micro- and 10-6 
C)  deci- and 101 
D)  more than one correct response 
E)  no correct response 
A)  kilo- and 10-3 
B)  micro- and 10-6 
C)  deci- and 101 
D)  more than one correct response 
E)  no correct response

Question 9

Statements: 
(1) The meaning of a metric system prefix is independent of the base unit it modifies.
(2) "Trailing zeros" at the end of a measured number are never significant.
(3) The answer to the problem 105/10-3 is 102.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 10

The measurement 8310.90 expressed in scientific notation becomes

Accepted Answer

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

Question 11

The "mathematical meaning" associated with the metric system prefixes centi, milli, and micro is, respectively,

Accepted Answer

A)  10-2, 10-4, and 10-6 
B)  10-2, 10-3, and 10-6 
C)  10-3, 10-6, and 10-9 
D)  10-3, 10-9, and 10-12 
A)  10-2, 10-4, and 10-6 
B)  10-2, 10-3, and 10-6 
C)  10-3, 10-6, and 10-9 
D)  10-3, 10-9, and 10-12

Question 12

Statements: 
(1) The answer to the calculation 12.00 F1F1F1S1F1F1F10 (6.00 F1F1F1S1F1F1F10 1023) should contain three significant figures.
(2) A meter is slightly larger than a yard, and a liter is slightly larger than a quart.
(3) The numbers 3.30 F1F1F1S1F1F1F10 10-1 and 3.30 F1F1F1S1F1F1F10 101 both have a magnitude of less than one.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 13

In which of the following pairs of temperature readings are the two members of the pair equivalent to each other?

Accepted Answer

A)  32F1F1F1S1F1F1F10F and 273 K 
B)  0F1F1F1S1F1F1F10C and 373 K 
C)  0F1F1F1S1F1F1F10C and 40F1F1F1S1F1F1F10F 
D)  more than one correct response 
E)  no correct response 
A)  32F1F1F1S1F1F1F10F and 273 K 
B)  0F1F1F1S1F1F1F10C and 373 K 
C)  0F1F1F1S1F1F1F10C and 40F1F1F1S1F1F1F10F 
D)  more than one correct response 
E)  no correct response

Question 14

In which of the following sequences are the metric system prefixes listed in order of decreasing size?

Accepted Answer

A)  kilo giga mega 
B)  milli nano micro 
C)  mega kilo micro 
D)  pico kilo deci 
A)  kilo giga mega 
B)  milli nano micro 
C)  mega kilo micro 
D)  pico kilo deci

Question 15

What is the mass, in grams, of 30.7 mL of a liquid if its density is 0.81 g/mL?

Accepted Answer

A)  3.8 
B)  25 
C)  4 
D)  249 
A)  3.8 
B)  25 
C)  4 
D)  249

Question 16

In which of the following pairs of measured numbers does each member of the pair contain the same number of significant figures?

Accepted Answer

A)  10.3 and 10.30 
B)  800.0 and 80 
C)  0.03330 and 0.0333 
D)  0.000096 and 960,000 
A)  10.3 and 10.30 
B)  800.0 and 80 
C)  0.03330 and 0.0333 
D)  0.000096 and 960,000

Question 17

Statements: (1) The conversion factor 103 m/1 km contains an unlimited number of significant figures.
(2) Density may be used as a conversion factor to convert from mass to volume.
(3) The equation 2.33 lb = 625 g is a correct mathematical statement.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 18

When expressed in scientific notation, the measured numbers 3200 and 3200.0 become, respectively,

Accepted Answer

A)  3.2 F1F1F1S1F1F1F10 103 and 3.200 F1F1F1S1F1F1F10 103 
B)  3.2 F1F1F1S1F1F1F10 103 and 3.2000 F1F1F1S1F1F1F10 103 
C)  3.200 F1F1F1S1F1F1F10 103 and 3.2000 F1F1F1S1F1F1F10 103 
D)  more than one correct response 
E)  no correct response 
A)  3.2 F1F1F1S1F1F1F10 103 and 3.200 F1F1F1S1F1F1F10 103 
B)  3.2 F1F1F1S1F1F1F10 103 and 3.2000 F1F1F1S1F1F1F10 103 
C)  3.200 F1F1F1S1F1F1F10 103 and 3.2000 F1F1F1S1F1F1F10 103 
D)  more than one correct response 
E)  no correct response

Question 19

The density of an object is the ratio of its

Accepted Answer

A)  length to volume 
B)  mass to height 
C)  mass to volume 
D)  length to mass 
A)  length to volume 
B)  mass to height 
C)  mass to volume 
D)  length to mass

Question 20

In which of the following pairs of units is the first listed unit 1000 times larger than the second?

Accepted Answer

A)  milligram and nanogram 
B)  liter and centiliter 
C)  kilometer and megameter 
D)  more than one correct response 
E)  no correct response 
A)  milligram and nanogram 
B)  liter and centiliter 
C)  kilometer and megameter 
D)  more than one correct response 
E)  no correct response

Exam 2: Measurements in Chemistry

What is the uncertainty associated with the measurement of 6.02 x 104?

Statements: (1) The measured number 2.410  10-3 contains three significant figures. (2) The specific heat of water is higher than that of most other substances. (3) The equation 1 kg = 106 mg is a correct mathematical statement.

Which of the following statements concerning the three major temperature scales is correct?

The correct answer obtained by dividing the measurement by the measurement is

Which of the following measured numbers contains three significant figures and has a magnitude of less than one?

To what decimal position should a measurement be recorded if the smallest markings on the measurement scale are tenths of a centimeter?

Which of the following statements concerning the measured number 0.3030 is correct?

In which of the following pairings of metric system prefix and power of ten is the pairing incorrect?

Statements: (1) The meaning of a metric system prefix is independent of the base unit it modifies. (2) "Trailing zeros" at the end of a measured number are never significant. (3) The answer to the problem 105/10-3 is 102.

The measurement 8310.90 expressed in scientific notation becomes

The "mathematical meaning" associated with the metric system prefixes centi, milli, and micro is, respectively,

Statements: (1) The answer to the calculation 12.00  (6.00  1023) should contain three significant figures. (2) A meter is slightly larger than a yard, and a liter is slightly larger than a quart. (3) The numbers 3.30  10-1 and 3.30  101 both have a magnitude of less than one.

In which of the following pairs of temperature readings are the two members of the pair equivalent to each other?

In which of the following sequences are the metric system prefixes listed in order of decreasing size?

What is the mass, in grams, of 30.7 mL of a liquid if its density is 0.81 g/mL?

In which of the following pairs of measured numbers does each member of the pair contain the same number of significant figures?

Statements: (1) The conversion factor 103 m/1 km contains an unlimited number of significant figures. (2) Density may be used as a conversion factor to convert from mass to volume. (3) The equation 2.33 lb = 625 g is a correct mathematical statement.

When expressed in scientific notation, the measured numbers 3200 and 3200.0 become, respectively,

The density of an object is the ratio of its

In which of the following pairs of units is the first listed unit 1000 times larger than the second?

Basic Concepts About Matter

Atomic Structure and the Periodic Table

Chemical Bonding: the Ionic Bond Model

Chemical Bonding: the Covalent Bond Model

Chemical Calculations: Formula Masses, Moles, and Chemical Equations

Gases, Liquids, and Solids

Solutions

Chemical Reactions

Acids, Bases, and Salts

Nuclear Chemistry

Saturated Hydrocarbons

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids, Esters, and Other Acid Derivatives

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes and Vitamins

Nucleic Acids

Biochemical Energy Production

Carbohydrate Metabolism

Lipid Metabolism

Protein Metabolism

Filters

What is the uncertainty associated with the measurement of 6.02 x 10⁴?

Statements: (1) The measured number 2.410  10^-3 contains three significant figures. (2) The specific heat of water is higher than that of most other substances. (3) The equation 1 kg = 10⁶ mg is a correct mathematical statement.

Statements: (1) The meaning of a metric system prefix is independent of the base unit it modifies. (2) "Trailing zeros" at the end of a measured number are never significant. (3) The answer to the problem 10⁵/10^-3 is 10².

Statements: (1) The answer to the calculation 12.00  (6.00  10²³) should contain three significant figures. (2) A meter is slightly larger than a yard, and a liter is slightly larger than a quart. (3) The numbers 3.30  10^-1 and 3.30  10¹ both have a magnitude of less than one.

Statements: (1) The conversion factor 10³ m/1 km contains an unlimited number of significant figures. (2) Density may be used as a conversion factor to convert from mass to volume. (3) The equation 2.33 lb = 625 g is a correct mathematical statement.