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What volume will 32g of oxygen at 25˚C and 100KPa occupy

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user707 | (Level 1) Honors

Posted June 8, 2013 at 4:24 AM via web

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What volume will 32g of oxygen at 25˚C and 100KPa occupy

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jeew-m | College Teacher | (Level 1) Educator Emeritus

Posted June 8, 2013 at 5:02 AM (Answer #1)

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Using ideal gas law;

`PV = nRT`

`V = (nRT)/P`

 

`P = 100Kpa = 100xx0.009869atm = 0.9869atm`

`n = (32g)/(32g/(mol)) = 1 mol`

`R = 0.08206 L·atm·mol^(-1)·K^(-1)`

`T = 25C = 25+273 K = 298K`

 

`V = (nRT)/P`

`V = (1xx0.08206xx298)/(0.9869)`

`V = 24.7784L`

 

So the volume of `O_2` gas would be 24.7784L

 

Assumption

`O_2` act as a ideal gas.

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