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CHEM 121 Final Exam (Verified Questions And Answers)
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A 5.00 liter gas sample is collected at a temperature and
pressure of 27.0°C and 1.20 atm. It is desired to transfer the gas
to a 3.00 liter container at a pressure of 1.00 atm. What must
be the temperature of the gas in the 3.00 liter container?
Select one:
a. 216 K
b. 417 K
c. 13.5?C
d. 150 K - ANSWER-d. 150 K
In which of the following processes does the energy of the
water increase?
Select one:
a. water freezes
b. steam condenses to liquid
c. water evaporates
d. more than one response is correct - ANSWER-c. water
evaporates
When steam condenses, it absorbs heat.
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Select one:
a. True
b. False - ANSWER-b. False
Moving water to a point 1500 meters higher that you are at
now will have what effect on its boiling point?
Select one:
a. increase it
b. lower it
c. will have no effect
d. too little information to know - ANSWER-b. lower it
A gas sample is collected in a latex balloon (it can easily stretch
or shrink). What happens to the density of the gas sample as
the sample is heated?
Select one:
a. decreases
b. increases
c. does not change
d. could increase or decrease, depending on how much it was
heated - ANSWER-a. decreases
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Definite shape is a characteristic of which state of matter?
Select one:
a. solid
b. liquid
c. gaseous
d. more than one response is correct - ANSWER-a. solid
A sample of gas collected at 21.0°C and a pressure of 660 torr
has a volume of 1.83 liters. What volume in liters will the gas
occupy at 38.0°C under a pressure of 500 torr?
Select one:
a. 2.56
b. 4.37
c. 2.28
d. 1.33 - ANSWER-a. 2.56
The vapor pressure of a liquid depends on the volume of the
partially filled container.
Select one:
a. True
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b. False - ANSWER-b. False
What is the molarity of a solution containing 0.325 moles of
solute in 250 mL of solution?
Select one:
a. 1.30 × 10-3
b. 1.30
c. 0.769
d. 8.13 × 10-2 - ANSWER-b. 1.30
Iodine, I2, is very slightly soluble in water, a polar solvent, but
quite soluble in tolune, a nonpolar solvent. What can be
inferred about the nature of the I2 molecule?
Select one:
a. It is ionic.
b. It is polar.
c. It is nonpolar.
d. Nothing can be inferred - ANSWER-c. It is nonpolar.
When solid NaOH is dissolved in water, the solution becomes
hot. The solution process is
CHEM 121 Final Exam (Verified Questions And Answers)
||Best New Edition||Sure Pass!!!
A 5.00 liter gas sample is collected at a temperature and
pressure of 27.0°C and 1.20 atm. It is desired to transfer the gas
to a 3.00 liter container at a pressure of 1.00 atm. What must
be the temperature of the gas in the 3.00 liter container?
Select one:
a. 216 K
b. 417 K
c. 13.5?C
d. 150 K - ANSWER-d. 150 K
In which of the following processes does the energy of the
water increase?
Select one:
a. water freezes
b. steam condenses to liquid
c. water evaporates
d. more than one response is correct - ANSWER-c. water
evaporates
When steam condenses, it absorbs heat.
,2|Page
Select one:
a. True
b. False - ANSWER-b. False
Moving water to a point 1500 meters higher that you are at
now will have what effect on its boiling point?
Select one:
a. increase it
b. lower it
c. will have no effect
d. too little information to know - ANSWER-b. lower it
A gas sample is collected in a latex balloon (it can easily stretch
or shrink). What happens to the density of the gas sample as
the sample is heated?
Select one:
a. decreases
b. increases
c. does not change
d. could increase or decrease, depending on how much it was
heated - ANSWER-a. decreases
,3|Page
Definite shape is a characteristic of which state of matter?
Select one:
a. solid
b. liquid
c. gaseous
d. more than one response is correct - ANSWER-a. solid
A sample of gas collected at 21.0°C and a pressure of 660 torr
has a volume of 1.83 liters. What volume in liters will the gas
occupy at 38.0°C under a pressure of 500 torr?
Select one:
a. 2.56
b. 4.37
c. 2.28
d. 1.33 - ANSWER-a. 2.56
The vapor pressure of a liquid depends on the volume of the
partially filled container.
Select one:
a. True
, 4|Page
b. False - ANSWER-b. False
What is the molarity of a solution containing 0.325 moles of
solute in 250 mL of solution?
Select one:
a. 1.30 × 10-3
b. 1.30
c. 0.769
d. 8.13 × 10-2 - ANSWER-b. 1.30
Iodine, I2, is very slightly soluble in water, a polar solvent, but
quite soluble in tolune, a nonpolar solvent. What can be
inferred about the nature of the I2 molecule?
Select one:
a. It is ionic.
b. It is polar.
c. It is nonpolar.
d. Nothing can be inferred - ANSWER-c. It is nonpolar.
When solid NaOH is dissolved in water, the solution becomes
hot. The solution process is
