Fundamentals of General, Organic, and Biological Chemistry 8th edition by John E. McMurry test bank

A) 3300
B) 0.0450
C) 45.060
D) 607.80
E) 5408
Answer:  A
Diff: 1
Section:  1.8
LO:  1.8
Global LO:  G4
 
78) What is the total length of two pieces of tubing which measure 4.5 cm and 3.222 cm? Express the answer to the correct number of significant figures.
A) 3.722 cm
B) 4.722 cm
C) 7.722 cm
D) 7.7 cm
E) 8 cm
Answer:  D
Diff: 2
Section:  1.9
LO:  1.9
Global LO:  G4
79) Find the difference between two masses measured as 123.6 grams and 115.972 grams. Express the answer to the correct number of significant figures.
A) 7.6 grams
B) 7.63 grams
C) 7.628 grams
D) 8.0 grams
E) 8 grams
Answer:  A
Diff: 2
Section:  1.9
LO:  1.9
Global LO:  G4
 
80) What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to the correct number of significant figures.
A) 128
B) 1280
C) 1282.3
D) 1282.32
E) 1282.319
Answer:  B
Diff: 2
Section:  1.9
LO:  1.9
Global LO:  G4
 

81) The numerical value for (5.6 × 104) ÷ (7.89 × 102) is equal to, with the proper number of significant figures:
A) 70.976
B) 71
C) 7.098 × 101
D) 71.0
E) 70.98
Answer:  B
Diff: 2
Section:  1.9
LO:  1.8, 1.9
Global LO:  G4
82) What is the numerical value of ? Express your answer using the correct number of significant figures.
A)
B) 1 ×
C) 1.2 ×
D) 1.23 ×
E) 1.227 ×
Answer:  D
Diff: 2
Section:  1.9
LO:  1.8, 1.9
Global LO:  G4
 
83) How many significant figures should be retained in the result of the following calculation?
 
            
A) 1
B) 2
C) 3
D) 4
E) 5
Answer:  B
Diff: 2
Section:  1.9
LO:  1.8, 1.9
Global LO:  G4
 

84) What is the total length of two pieces of rubber tubing which are 7.69 cm and 4.028 cm in length? Express this answer to the correct number of significant figures.
A) 11.7 cm
B) 11.69 cm
C) 11.718 cm
D) 11.72 cm
E) 12 cm
Answer:  D
Diff: 2
Section:  1.9
LO:  1.5
Global LO:  G4
85) What is the numerical value of (2.1 × )(4.0 × ) expressed to the correct number of significant figures?
A) 8.4
B) 8.4 ×
C) 8.4 ×
D) 8.4 ×
E) None of the above.
Answer:  B
Diff: 2
Section:  1.9
LO:  1.8, 1.9
Global LO:  G4
 
86) What is the numerical value of ?
A) 1.2
B) 1.2 ×
C) 1.2 ×
D) 1.2 ×
E) 1.2 ×
Answer:  D
Diff: 3
Section:  1.9
LO:  1.8, 1.9
Global LO:  G4
 

87) How many centimeters are contained in 12.5 inches?
A) 4.92 cm
B) 5.10 cm
C) 31.8 cm
D) 492 cm
E) None of the above.
Answer:  C
Diff: 1
Section:  1.10
LO:  1.10
Global LO:  G4
 
88) How many grams are contained in 1.20 pounds?
A) 545 g
B) 378 g
C) 264 g
D) 2.2 g
E) 1.20 g
Answer:  A
Diff: 1
Section:  1.10
LO:  1.10
Global LO:  G4
89) How many inches are contained in 25.4 cm?
A) 100 inches
B) 64.5 inches
C) 25.4 inches
D) 10.0 inches
E) 0.10 inches
Answer:  D
Diff: 1
Section:  1.10
LO:  1.10
Global LO:  G4
 
90) How many centimeters are there in one kilometer?
A)  cm
B)  cm
C)  cm
D)  cm
E)  cm
Answer:  A
Diff: 1
Section:  1.10
LO:  1.10
Global LO:  G4
 
91) An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this?
A) 0.471 μg
B) 4.71 ×  μg
C) 4.71 ×  μg
D) 4.71 ×  μg
E) 4.71 ×  μg
Answer:  B
Diff: 1
Section:  1.10
LO:  1.10
Global LO:  G4
92) The conversion factor used to convert 15.0 inches to cm is
A) .
B) .
C) .
D) .
E) .
Answer:  A
Diff: 2
Section:  1.10
LO:  1.10
Global LO:  G4
 

93) The conversion factor used to convert 55.6 km to miles is
A) .
B) .
C) .
D) .
E) .
Answer:  C
Diff: 2
Section:  1.10
LO:  1.10