calculate the molar mass of oxygen gas if 64g of oxygen in 22.4L vesswl exert a pressure of 5 atm at 0°C
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16g of oxygen gas is 0.5 mole.
No. of moles of gas is inversely proportional to temperature,with other factors being same (PV=nRT)
1 mole of oxygen gas occupies 22.4 litres at 1 atm pressure and 273K (0
0
C)
Thus, 0.5 moles of it would occupy same volume at 1 atm pressure and 546 K (273
0
C)
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