1. A tank contains 115 moles of neon gas. It has a pressure of 57 atm at a temperature of 45°C. Calculate the volume of the tank.

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Chapter1: Chemical Foundations
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RT
example
The pressure excrted by 2.8 moles of argon gas at a temperature of 85 C is 420 torr. What is the volume of this sample?
- list the variables:
P 420 tom
= 2.8 mol
R=0.0821
T 85°C
- convert the variables:
420 tog
Tatm
T= 85°C+ 273 = 358 K
= 0.553 atm
760tbr
(2.8 mal)(0.08206 (358K)
0.553 abm
- substitute into the equation:
nRT
V
V =
P
=82L
Solve the following problems.
1. A tank contains 115 moles of neon gas. It has a pressure of 57 atm at a temperature of 45°C. Calculate the
volume of the tank.
2. A scuba tank has a pressure of 195 atm at a temperature of 10°C. The volume of the tank is 350 L. How
many moles of air are in the tank?
3. A helium-filled balloon has a volume of 208 L and it contains 9.95 moles of gas. If the pressure of the
balloon is 1.26 atm, determine the temperature in Celsius degrees.
4. A tank of oxygen has a volume of 1650 L. The temperature of the gas inside is 35°C. If there are 9750 moles
of oxygen in the tank what is the pressure in PSI?
5. A canister of acetylene has a volume of 42 L. The temperature of the acetylene is 305 K and the pressure is
780 torr. Determine the amount (moles) of gas in the canister.
6. Calculate the volume of a CO, cartridge that has a pressure of 850 PSI at a temperature of 21°C. The
cartridge contains 0.273 mol of CO,.
A tank contains 2500 L of argon gas. The pressure is13790 kPa and the temperature is 25°C. How many
moles of argon are in the tank?
7.
© John Erickson, 2005
WS14-4ldealGasLaw
e 画
57
Transcribed Image Text:ööğle.com/u/0/c/MjQ5MTk5Mjl4NDM5/a/MzEzNTczNTU4NTY3/details RT example The pressure excrted by 2.8 moles of argon gas at a temperature of 85 C is 420 torr. What is the volume of this sample? - list the variables: P 420 tom = 2.8 mol R=0.0821 T 85°C - convert the variables: 420 tog Tatm T= 85°C+ 273 = 358 K = 0.553 atm 760tbr (2.8 mal)(0.08206 (358K) 0.553 abm - substitute into the equation: nRT V V = P =82L Solve the following problems. 1. A tank contains 115 moles of neon gas. It has a pressure of 57 atm at a temperature of 45°C. Calculate the volume of the tank. 2. A scuba tank has a pressure of 195 atm at a temperature of 10°C. The volume of the tank is 350 L. How many moles of air are in the tank? 3. A helium-filled balloon has a volume of 208 L and it contains 9.95 moles of gas. If the pressure of the balloon is 1.26 atm, determine the temperature in Celsius degrees. 4. A tank of oxygen has a volume of 1650 L. The temperature of the gas inside is 35°C. If there are 9750 moles of oxygen in the tank what is the pressure in PSI? 5. A canister of acetylene has a volume of 42 L. The temperature of the acetylene is 305 K and the pressure is 780 torr. Determine the amount (moles) of gas in the canister. 6. Calculate the volume of a CO, cartridge that has a pressure of 850 PSI at a temperature of 21°C. The cartridge contains 0.273 mol of CO,. A tank contains 2500 L of argon gas. The pressure is13790 kPa and the temperature is 25°C. How many moles of argon are in the tank? 7. © John Erickson, 2005 WS14-4ldealGasLaw e 画 57
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