# Chemistry 1 practice test 7

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AB CHEMISTRY 1 | PRACTICE TEST SET #7
LOGIC: Two Girls ate dinner together. They both ordered iced tea. One girl drank them very fast and
had finished five cups in time it took the other girl to drink just one. The girl who drunk one cup died
while the other survive. All of the drinks were poisoned. Why did the girl who drunk the most survived?
T
N
P
I
S
H
O
O
E
0.27L
1.29mol
2.61L
0.52L
6.78atm
0.35L
127.67K
1.09atm
5.08L
E
T
E
C
H
6.97atm
9.35atm
1.58atm
0.26atm
5.07atm
1. 350.0 mL of a gas are under a pressure of 700.0 mmHg. What would the final volume of the gas
be at a pressure of 900.0 torr?
2. Convert 339.0 mL at 730.0 torr, to its new volume at standard pressure.
3. A container contains 4.9 L of nitrogen gas at 26° C. What will be its volume if the temperature
increases by 37° C keeping the pressure constant?
4. A sample of hydrogen has an initial temperature of 51°C. When the temperature is lowered to
12°C, the volume of hydrogen becomes 2.3 L. What was the initial volume of the hydrogen?
5. The initial temperature of a 2.10 liter sample of xenon is 21°C. The pressure is decreased from
820 mm Hg to 350 mm Hg and the volume increases to 2.14 liters. What was the change in
temperature of the argon?
6. A sample of nitrogen dioxide occupies a volume of 641 mL at 42.5°C and 710 mmHg. What
volume will the nitrogen dioxide occupy at STP?
7. 4.90 L of a gas is collected at 22.1 °C and 743.0 kPa. When the temperature is changed to
standard, what is the new pressure?
8. A monster fill container with a volume of 22.4 L filled with a gas at 1.00 atm at 273 K. What will
be the new pressure if the temperature increases to 298 K?
9. 8.3 liters of an ideal gas are contained by a monster at a pressure of 3.95 atm and 37.12°C. How
many moles of this gas are present?
10. How many molecules are there in 984 mL of nitrogen at 0.1° C and 1.00 x 10
-7
torr?
11. A monster has a cylinder of radon gas contains 51.42 L of Rn at 17.4 atm and 124 °C. How many
moles of radon are in the cylinder?
12. What is the temperature of one mole of chlorine gas that occupies 21.22L at 1.99atm pressure
13. What is the gas pressure within a cylinder of a monster if he has 6.1g of CO
2
gas in a 12 L
cylinder at 34
o
C inside it?
14. How many moles of gas will a 1320 mL flask hold at 38.0 deg. C and a pressure of 93.4 kPa.
15. A mixture of hydrogen (1.01 g) and chlorine (17.73 g) in a 2L container at 300.What is the total
pressure of the two gases in the mixture? (H = 1g/mol and Cl= 35 g/mol)
16. A mixture of flourine (12.01 g) and chlorine (19.73 g) gas in a 4L container at 412 K. What is the
total pressure of the two gases in the mixture? ( F= 19 g/mol and Cl = 35 g/mol)
17. 9 g of nitrogen gas and 10.12 g of helium gas are placed together in a 10 L container at 25°C.
Calculate the total pressure of the gas in the mixture. ( He = 4 g/mol and N = 14g/mol)
18. Suppose you have a 5.5 L flask containing 5.3 grams of CO
2
and 2.2 g of O
2
at 65
o
C. Find the
total pressure in the flask? (C = 12g/mol and O = 16g/mol)
19. The pressure of a mixture of nitrogen, carbon dioxide, and oxygen is 150 kPa. What is the partial
pressure of oxygen if the partial pressures of the nitrogen and carbon dioxide are 100 kPA and
24 kPa, respectively?
20. A scuba tank contains O
2
with a pressure of 0.450 atm and He at 855 kPa. What is the total
pressure in the tank?
A
N
S
I
W
27.47mol
0.05mol
516.12K
0.29atm
5.80x10
-12
mol

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AB CHEMISTRY 1 | PRACTICE TEST SET #7 LOGIC: Two Girls ate dinner together. They both ordered iced tea. One girl drank them very fast and had finished five cups in time it took the other girl to drink just one. The girl who drunk one cup died while the other survive. All of the drinks were poisoned. Why did the girl who drunk the most survived? T 0.27L N 1.29mol A 27.47mol E 6.97atm P 2.61L I 0.52L N 0.05mol T 9.35atm S 6.78atm H 0.35L S 516.12K I 0.96atm O 127.67K I 0.29atm E 1.58atm C 0.26atm O 1.09atm E 5.08L W 5.80x10-12mol H 5.07atm ANSWER: 1. 350.0 mL of a gas are under a ...
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