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1.3 Calculating molar mass of a gas using PV=nRT

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this is msj CM in this video I'll be

looking at calculating the molar mass of

a gas using the ideal gas equation we'll

start by looking at an example 1.10 G of

an unknown gas occupies a volume of 567

cm cubed at STP calculate the molar mass

of the gas to solve this we'll use the

equation molar mass equals Mr RT / PV m

is molar mass in G per mole small m is

mass in g r is a universal gas constant

p is the pressure in pascals and V is

the volume in me cubed so here we have

the same equation with the values

substituted in the mass of the gas is

1.10 G the universal gas constant is

8.31 JW per Kelvin mole the temperature

in Kelvin at STP is

273 the pressure of a gas at STP is 1. *

10 5

pascals and to convert from cm cubed to

me cubed we divide the value in cm cubed

by 1 million this gives us a molar mass

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YouTube Transcript:1.3 Calculating molar mass of a gas using PV=nRT

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YouTube Transcript:
1.3 Calculating molar mass of a gas using PV=nRT