The Ideal Gas Law

Video on Ideal Gas Law

Notes on Ideal Gas Law

PV= nRT

R= Ideal Gas Constant

R= .08206 L atm /mol K

Exercises on Ideal Gas Law

1. Given each of the following set of values for three of the gas variables, calculate the unknown quantity.

a. P= 21.2 atm; V=142 mL; n=0.432 mol; T= ? K

b. P= ? atm ; V= 1.23 mL ; n=0.000115 mol ; T= 293 K

c. P= 755 mmHg; V=? mL ; n=0.473 mol ; T= 131 C

2. What is the pressure inside a 10.0 L flask containing 14.2 g of N₂ at 26 C?

3. Suppose three 100. L tanks are to be filled separately with the gases CH₄, N₂, and CO₂, respectively. What mass of each gas is needed to produce a pressure or 120. atm in its tank at 27 C?

4. At what temperature does 4.00 g of helium gas have a pressure of 1.00 atm in a 22.4 L vessel?

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