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HomeTest Bank General, Organic, And Biological Chemistry, Hybrid 7th Edition Test Bank by H. Stephen Stoker
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General, Organic, And Biological Chemistry, Hybrid 7th Edition Test Bank by H. Stephen Stoker

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Category: Test Bank Tags: And Biological Chemistry, General, Hybrid 7th Edition H. Stephen Stoker, Organic
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1. The “mathematical meaning” associated with the metric system prefixes centi, milli, and micro is,
respectively,
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

ANSWER: b
2. In which of the following sequences are the metric system prefixes listed in order of decreasing size?
a. kilo giga mega b. milli nano micro
c. mega kilo micro d. pico kilo deci
ANSWER: c
3. Which of the following is an incorrect pairing of terminology?
a. kilogram – metric unit of mass
b. milliliter – metric unit of volume
c. meter – metric unit of length
d. cubic centimeter – metric unit of length
ANSWER: d
4. To what decimal position should a measurement be recorded if the smallest markings on the measurement
scale are tenths 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
ANSWER: c
5. In which one of the following measure numbers are all of the zeros significant?
a. 0.0705 b. 3,300,000
c. 0.000440 d. 3.945900
ANSWER: d
6. In which of the following pairs of measured numbers does each member of the pair contain the same number
of significant figures?
a. 10.3 and 10.30 b. 800.0 and 80
c. 0.03330 and 0.0333 d. 0.000096 and 960,000
ANSWER: d
7. In which of the following cases is the given measurement correctly rounded to three significant figures?
a. 479,000 becomes 479 b. 0.02235 becomes 0.0223
c. 37.98 becomes 38.0 d. 49.400 becomes 49,400
ANSWER: c
8. Which of the following would involve an exact number?
a. the length of a table b. the mass of a bag of carrots
c. the number of inches in a yard d. the surface area of a quilt
ANSWER: c
9. The measurement 8310.90 expressed in scientific notation becomes

a. b.
c. d.
ANSWER: d
10. What is the uncertainty associated with the measurement of 6.02 x 104
?

a. 100 b. 10
c. 0.1 d. 0.01
ANSWER: a
11. The calculator answer obtained from multiplying the measurements 64.49 and 6.57 is 423.70. Given the
operational rules governing significant figures, this answer
a. is correct as written b. should be rounded to 423.7
c. should be rounded to 424 d. could be written as 423
ANSWER: c
12. The correct answer obtained from adding the measurements 9.6, 4.79, and 5.352 contains
a. two significant figures b. three significant figures
c. four significant figures d. five significant figures
ANSWER: b
13. The correct answer obtained by dividing the measurement by the measurement 2.876 x 10–9
is

a. b.
c. d.
ANSWER: b
14. According to dimensional analysis, which of the following is the correct setup for the problem “How many
milligrams are there in 85 kilograms?”
a.
85

b.
85

c.
85

d.
85

ANSWER: b
15. How many conversion factors can be derived from the equality 60 seconds = 1 minute?
a. two b. three
c. four d. an unlimited number
ANSWER: a
16. The density of an object is the ratio of its
a. length to volume b. mass to height
c. mass to volume d. length to mass
ANSWER: c
17. If object A weighs 6.0 grams and has a volume of 3.0 mL and object B weighs 9.0 grams and has a volume

of 2.25 mL
a. B is less dense than A. b. A and B have equal densities.
c. B is twice as dense as A. d. B is four times as dense as A.
ANSWER: c
18. What is the mass, in grams, of 30.7 mL of a liquid if its density is 0.81 g/mL?
a. 3.8 b. 25
c. 4 d. 249
ANSWER: b
19. Which of the following comparisons of the size of a degree on the major temperature scales is correct?
a. A Kelvin degree is larger than a Celsius degree.
b. A Fahrenheit degree and a Celsius degree are equal in size.
c. A Fahrenheit degree is larger than a Kelvin degree.
d. A Celsius degree and a Kelvin degree are equal in size.
ANSWER: d
20. If the temperature of an object is 435o

C, what is the temperature on a Kelvin scale?

a. 162 K b. 608 K
c. 672 K d. 708 K
ANSWER: d
21. In which of the following pairings of metric system prefix and power of ten is the pairing incorrect?
a. kilo- and 10–3
b. micro- and 10–6
c. deci- and 101
d. more than one correct response
e. no correct response
ANSWER: d
22. In which of the following pairs of units is the first listed unit 1000 times larger than the second?
a. milligram and nanogram
b. liter and centiliter
c. kilometer and megameter
d. more than one correct response
e. no correct response
ANSWER: e
23. In which of the following sequences of measured numbers do all members of the sequence contain three
significant figures?
a. 3.03 and 3.30 and 0.033
b. 78,000 and 0.00780 and 780
c. 30.0 and 0.300 and 30,100
d. more than one correct response

e. no correct response
ANSWER: c
24. Which of the following digits in the measurement 654,300 seconds is an estimated digit?
a. the last digit
b. the next to last zero
c. the three
d. more than one correct response
e. no correct response
ANSWER: c
25. Which of the following statements concerning the measured number 0.3030 is correct?
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 × 10–2
.

d. More than one correct response.
e. No correct response.
ANSWER: b
26. Which of the following mathematical expressions is correctly evaluated?
a.
b. 103
× 104
= 1012

c.

d. more than one correct response
e. no correct response
ANSWER: a
27. Which of the following measured numbers contains three significant figures and has a magnitude of less
than one?
a. 3.30 × 105
b. 3.00 × 10–3
c. 3.20 × 10–4
d. more than one correct response
e. no correct response
ANSWER: d
28. When expressed in scientific notation, the measured numbers 3200 and 3200.0 become, respectively,
a. 3.2 × 103

and 3.200 × 103

b. 3.2 × 103

and 3.2000 × 103

c. 3.200 × 103

and 3.2000 × 103
d. more than one correct response

e. no correct response
ANSWER: b
29. Which of the following measured numbers has an uncertainty of 0.01 associated with it?
a. 32.930
b. 3.02 × 106
c. 3.0 × 10–1
d. more than one correct response
e. no correct response
ANSWER: c
30. Which of the following statements concerning conversion factors is incorrect?
a. English-to-English conversion factors come from defined relationships
b. Metric-to-metric conversions come from measured relationships
c. English-to-English conversion factors always contain exact numbers
d. more than one correct response
e. no correct response
ANSWER: c
31. Which of the following conversion factors would limit a calculation to two significant figures?
a.
b.

c.
d. more than one correct response
e. no correct response
ANSWER: e
32. Density can be used as a conversion factor to convert from
a. mass to volume
b. volume to mass
c. metric unit mass to English unit mass
d. more than one correct response
e. no correct response
ANSWER: d
33. The density of table sugar is 1.59 g/mL. It is true that
a. 2.00 g of table sugar occupies a volume of 1.17 mL.
b. 3.00 g of table sugar occupies a volume of 1.97 mL.
c. 5.00 g of table sugar occupies a volume of 3.14 mL.
d. More than one correct response
e. No correct response

ANSWER: c
34. Which of the following statements concerning the three major temperature scales is correct?
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.
ANSWER: d
35. In which of the following pairs of temperature readings are the two members of the pair equivalent to each
other?
a. 32°F and 273 K
b. 0°C and 373 K
c. 0°C and 40°F
d. more than one correct response
e. no correct response
ANSWER: a
36. 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
.

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 are true.
ANSWER: c
37. Statements:
(1) In outer space, an astronaut may be weightless but never massless.
(2) The metric system prefixes milli and micro differ in mathematical meaning by a factor of 1000.
(3) The addition of 273 to a Fahrenheit temperature reading will convert it to a Kelvin temperature reading.
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 are true.
ANSWER: b
38. 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.

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 are true.
ANSWER: b
39. Statements:
(1) The answer to the addition problem 3.21 + 32 + 3.22 should have an uncertainty of hundredths.
(2) The measurement 653,899, when rounded to five significant figures, becomes 65,390.
(3) The higher the specific heat of a substance, the more its temperature will change when it absorbs a given
amount of heat.
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 are true.
ANSWER: d
40. 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.
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 are true.
ANSWER: b
41. Statements:
(1) A deciliter is equal to 100 milliliters.
(2) The Kelvin temperature scale is closely related mathematically to the Celsius temperature scale.
(3) Measurements cannot be exact because two estimated digits are always recorded as part of any
measurement.
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 are true.
ANSWER: b
42. 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.

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 are true.
ANSWER: b

43. Statements:
(1) The size of the degree is the same on the Fahrenheit and Celsius temperature scales.
(2) The measurement 62,300 has an uncertainty of ± 100.
(3) The answer to the calculation 8.45 + 10.40 should contain four significant figures.
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 are true.
ANSWER: b
44. Statements:
(1) The measured numbers 244,000 and 0.000244 contain the same number of significant figures.
(2) One cubic centimeter is equal to ten milliliters.
(3) The conversion factor 1 in/2.54 cm, when used as written, would decrease unit size.
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 are true.
ANSWER: c

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