Question

what is the volume of 1g H2.....???

Answer 1

one mole of a gas at STP occupies 22.4L. since molecular mass of hydrogen is 2gm & we know that the molecular mass of any molecule has volume of 22.4 litre . 1 g of Hydrogen Gas (H2) = 0.5 mole of Hydrogen gas since 2 gm. is the molar mass of Dihydrogen!