50 ML of `CO_2` at NTP weight 0.0982 gm. calculate the molecular mass of carbon dioxide .

1 litre gas at NTP weight 0.5 g what is molecular mass of gas ?

1 litre of a gas at NTP weights 0.5 gm .What is the molecular weight of the gas ?

The osmotic pressure ofa solution containing 50 g of a solute in one litre of solution at 300K is 20.5 atmosphere. Calculate the molecular mass of the solute.

200 mg of protein is dissolved in 20ml of a solution. If the osmotic pressure of the solution is 15mm of hg at 298k, calculate the molecular mass of protein.

A solution containing 9.6 g of a substance in 100g of water boiled at 100.8^@C at 1 atm pressure. Calculate the molecular mass of substance. Calculate the molecular mass of substance. (Boiling elevation constant for water = 0.52^@C per 1000g of it)

What is the volume of oxygen at N.T.P. needed to cause complete combustion of 100 ml of acetylene and also calculate the volume of carbon dioxide.

Addition of 0.643 g of a compound to 50. mL of benzene .(density 0.879 g/mL lowers the freezing point from 5.51^0C to 5.03^0C. If K_(f) for benzene is 5.12 K kg mol^1 , calculate the molar mass of the compound.