GL - Molar Volumes of Gases (Lesson)
Molar Volumes of Gases
Introduction
At standard temperature and pressure (0oC and 1 atm) one can use the Ideal Gas Law to calculate the Molar volume of an ideal gas, which is 22.41 L/mol.
To calculate this we can use the formula PV = nRT.
At STP (Standard Temperature and Pressure), we choose:
V = ?
P = 1atm
N = 1 mol
R = 0.0821 L*atm/mol*K
T = 0oC + 273 = 273K
V = nRT/P
V = {(1mol)( .0821 L*atm/mol*K)(273K)}/1atm
V = 22.41 L
Therefore 1 mole of an ideal gas = 22.41 Liters
We can now use this equivalence statement for converting between moles and liters. This lesson will guide you through the process of using the molar volume of gases as a conversion factor.
Converting Moles of Volume
Molar Volumes to Gases Explore
Moles/Volume Practice
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