Question

The volume occupied by 1 g of a gas at stp is 300 ml. Calculate molar mass of gas

Answer 1

Answer:no of moles = given volume / molar volume at stp

given volume= 300ml

molar volume = 22.4 L=22.4X1000mL=22400mL

no of moles = 300/22400=74.6 moles

no of moles=given mass /molar mass

74.6=1g/molar mass

molar mass =1/74.6=0.0134048257372654g/mol

                                     

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