1.

A gaseous substance weighing 0.5g occupies volume of 1.12l at new. calculate molar mass of the substance

Answer»

"1 mole of any gas at NTP OCCUPIES 22.4 LITRES of VOLUME."


so, number of MOLES in 1.12 litres of the gaseous substance = 1.12/22.4 = 0.05


given that,

mass of 0.05 moles of the gaseous substance is 0.5 grams

Hence, mass of 1 mole of the gaseous substance is 10 grams


Therefore the molecular mass of the gaseous substance is 10 grams.


Hope it helps!!




Discussion

No Comment Found