[" Qy) 1dg a gas at sTP wel'ght "1.97g" quhat "],[" is the moleular mass a fhegas."]

1L of a gas at STP weighs 1.97g. What is molecular mass?

10 litres of a gas at S.T.P. weigh 19.64 g. Calculate the molecular mass of the gas.

The mass of 16.4 dm^3 of a gas at STP is 22g. What is the molar mass of the gas?

A gaseous hydrocarbon contains 75% carbon by mass. 100cm^(3) of this gas at STP weighs 0.072g. What is the molecular formula of the hydrocarbon? [Weight of 1 litre hydrogen at STP=0.09g]

1.4dm^3 of a gas at a STP Weighs 1.26 XX 10^3 Kg . molecular mass

A gaseous hydrocarbon contains 75% C by weight. 1L of this gas at STP weighs 0.72 g. what is the molecular formula of the hydrocarbon? [weight of 1 L of hydrogen at STP=0.09g].

1 litre of a gas at STP weights 1.35 gram. The molar mass of the gas is