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Multiple Choice Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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As stated in the Introduction of the Pre Laboratory Exercises, the
three types of measurements that will be taken are: a. | pressure,
temperature, volume | c. | pressure,
volume, density | b. | pressure, temperature, density | d. | temperature, volume, density | | | | |
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2.
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As stated in
the Pre Laboratory Exercises, which of the following is not a laboratory
objective? a. | Set up the
apparatus to collect and measure gas generated. | b. | Determine
density of the metal used to generate the gas. | c. | Measure a mass
of metal to be used to generate the gas. | d. | Use the Ideal gas law to determine the moles of gas generated
after measuring the volume, temperature, and pressure of the gas. | e. | Using a balanced
equation to determine the moles of metal. With the mass and moles calculate the molar
mass. | | |
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3.
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Which of the following glassware/hardware is not
used in this laboratory exercise? a. | erlenmeyer flask and stopper | d. | large beaker | b. | rubber tubing
and clamp | e. | bunsen
burner | c. | round bottom flask | | | | |
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4.
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Convert the following pressure: 4.51 psi to torr a. | 3430
torr | b. | 66.3
torr | c. | 0.307
torr | d. | 233
torr | e. | 0.0872
torr | | | | | | | | | | |
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5.
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Convert the following temperature: 45OF to
Kelvin a. | 113
K | b. | 386
K | c. | 280.
K | d. | 7.2
K | e. | 266
K | | | | | | | | | | |
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6.
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Convert the
following volume: 456 cm3 to liters. a. | 456 L | b. | 0.456 L | c. | 456,000 L | d. | 0.000456 L | e. | 0.00456 L | | | | | | | | | | |
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7.
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Calculate
the mass of 4.56 liters CO2 gas at STP (Standard Temperature and
Pressure). a. | 4490
g | b. | 0.00463
g | c. | 0.204
g | d. | 102
g | e. | 8.96
g | | | | | | | | | | |
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8.
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What
is the value of the gas constant R?
a. | 0.0821 atm L/mol K |
c. | 760 atm L/mol K |
e. | 101.3 atm L/mol K | b. | 22.4 atm L/mol
K | d. | 14.7 atm L/mol
K |
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9.
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In
the Laboratory Procedure, Part 2 number 3 what needs to be released to prevent the stopper from
popping and gas being lost? a. | erlenmeyer flask | c. | metal | e. | test tube | b. | rubber
tubbing | d. | clamp | | | | | | |
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