Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I need to see work because I am unsure on how to do this, and I need to know how to before my test pretty please
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
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