A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight.

A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by mass.

(a) State six postulates of Dalton's atomic theory. (b) A 0.24g sample of compound of carbon and oxygen on analysis was found to contain 0.096 g of carbon and 0.144 g of oxygen. Find the percentage composition of the compound by weight.

0.48 g of a sample of a compound containing boron and oxygen contains 0.192 g of boron and 0.288 g of oxygen. What will be the percentage composition of the compound?

0.2g of an organic compound gave on combustion 0.55gm of CO_(2) and 0.0892g of H_(2)O .Calculate the percentage composition of Carbon in the compound.

0.4 g of Organic Compound gave 0.188 g of AgBr. The percentage of Br in the compound is

0.246g of an organic compound on complete combustion gave 0.198g of Carbondioxide and 0.1014g of water,then the percentage composition of hydrogen in the compound is

0.25 g of an organic compound 'X' containing carbon, hydrogen and oxygen was analysed by the combustion method. The increase in mass of calcium chloride tube and potash bulbs at the end of the experiment was found to be 0.15 g and 0.1837 g respectively. Calculate the percentage composition of the compound.

4.9 g of sulphuric acid contains 0.1 g of hydrogen, 1.6 g of sulphur and rest oxygen. Calculate the mass percentage composition of all the elements of sulphuric acid.