
Adv Chem Unit 09 Mock Exam
Authored by Patrick Boylan
Chemistry
10th Grade
Used 30+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At standard temperature, a gas has a volume of 332 mL. The temperature is then increased to 128°C, and the pressure is held constant. What is the new volume?
Unable to determine without initial temperature.
488mL
226mL
708mL
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A gas has a pressure of 2.26 atm and occupies a volume of 4.40 L. If the gas is compressed to a volume of 2.68 L, what will its pressure be, assuming constant temperature?
3.71atm
5.22atm
1.38atm
2.68atm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the volume of ammonia, NH3, produced from a reaction of 4.00 moles of nitrogen gas at STP with excess hydrogen gas.
N2(g) + 3H2(g) → 2NH3(g)
8.00L
179L
22.4L
44.8L
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the pressure of a sample of a gas is decreased to 1/4 the original pressure while the temperature is held constant, what happens to the volume of the gas?
It increases 4 times the original volume.
It decreases to 1/4 the original volume.
It stays the same.
There is not enough information.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 2.5 mole sample of hydrogen gas, H2(g), at 1.5 atm occupies 56.0 liters. What is the temperature of the sample?
409K
409°C
682K
682°C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the reaction
2 HCl(g) + Na2CO3(s) → 2 NaCl(s) + H2O(l) + CO2(g)
179.2 liters of CO2 is collected at 1.500atm and 94.00°C. How many grams of NaCl are also formed?
Molar Mass of CO2 = 44g/mol
Molar Mass of NaCl = 58g/mol
1035g
517.6g
179.2g
358.4g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A gas has a volume of 12.0 L at a pressure of 2.00 atm. What volume is needed to change the pressure to 3.00 L at constant temperature?
12.0atm
1.00atm
0.500atm
8.00atm
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