An oxide of nitrogen contains 30.43% of nitrogen.The molecular weight of the compound is equal to 92 a.m.u. Calculate the molecular formula of the compound.

The empirical formula of the compound is CH3. Calculate the molecular formula if molecular mass is 30.

An organic substance containing carbon, hydrogen and oxygen gave following percentages, C= 40.68%, H_(2) = 5.085% and O_(2) = 54.22%. The vapour density of the compound is 59. Calculate the molecular formula of the compound.

An organic compound on analysis gave the following percentage composition of C= 57.8, H= 3.6 and the rest is oxygen. Vapour density of the compound is 83. Find out the molecular formula of the compound.

A compound containing carbon, hydrogen and oxygen gave the following analytical data C= 40.0%, H= 6.67%. Calculate the molecular formula of the compound, If its molecular mass is 180.

A compound on analysis gave the following results C = 54.54% , H=9.09% and rest is oxygen and vapour density of the compound = 88. Determine the molecular formula of the compound.

Calculate the molecular mass of the compound if its vapour density is 54.4.

A certain non-volatile electrolyte contain 40% carbon, 6.7% hydrogen and 53.3% oxygen.An aqueous solution containing 5% by mass of the solute boils at 100.15^(@) C. Determine molecular formula of the compound( K_(b) =0.51^(@)C//m ):

The empirical formula of a non-electrolyte is CH_(2)O . A solution containing 3 g L^(-1) of the compound exerts the same osmotic pressure as that of 0.05 M glucose solution. The molecules formula of the compound is :

Write the empirical formula of the compounds having the molecular formulas : Fe2O3

An organic compound has the following percentage composition : C= 48%, H= 8% N= 28% and rest of oxygen. Calculate the empirical formula of the compound.