A sample of phosphorus that weighs `12.4g` exerts a pressure 8 atm in a `0.821` litre closed vesel at `527^@ C`. The molecular formula of the phosphorus vapour is :

1 litre of a solution containing 500 g of a protein exerts an osmotic pressure of 0.82 atm at 27^@C .The molecular weight of the protein is:

34.95 ml of phosphorus vapour weighs 0.0625g at 0.1 bar pressure. What is the molar mass of phosphorus ?

The density of phosphorus vapour at 310^(@)C and 775 torr is 2.64 g dm^(-3) . What is the molecular formula of phosphorus ?

A sample of gas has a volume of 0.2 litre at 1 atm pressure and 0^(@) C. At the same pressure but at 273^(@) C its volume will become

34.05 mL of phosphorus vapour weigh 0.0625 g at 546^(@)C and 1.0 bar pressure. What is the molecular mass of phosphorus? How many atoms are there in one molecule of phosphorus?

34.05 mL' of phosphorus vapour weighs '0.0625 g' at '546^degree C' and '0.1' bar pressure. What is the molar mass of phosphorus?

2g of H_2 and 17g of NH_3 are placed in a 8.21 litre flask at 27^@C . The total pressure of the gas mixture is?