0.24g sample of a compound of oxygen and boron was found by analysis to contain 0.144g of oxygen and 0.096g of boron. Calculate the percentage composition of the compound by weight. (AS-1)

0.15 g of iodoform gave 0.2682 g of AgI. Calculate the percentage of iodine.

0.12 g of an organic compound gave on combustion 0.18 g of water and 0.11 g of CO_(2) . Calculate the percentage of C and H in the organic compound.

0.495 g of an organic compound on combustion gave 0.99 g of CO_(2) and 0.405 g of water. Calculate the percentages of carbon and hydrogen in the compound.

0.24 g of an organic compound gave 0.287 g of AgCl in the carius method. Calculate the percentage of chlorine in the compound.

On complete combustion, 0.246 g of an organic compound gave 0.198 g of CO_(2) and 0.1014 of H_(2)O . Find the percentage composition of the organic compound.

1.84 g of a mixture of CaCO_(3) and MgCO_(3) was heated to a constant weight. The constant weight of the residue was found to be 0.96g. Calculate the percentage composition of the mixture. (relative atomic masses of Ca and Mg are 40 and 24 respectively).

0.45 g of an organic compound when analysed by combustion gave 1.10 g carbon dioxide and 0.3 g water . Calculate the percentage of carbon and hydrogen in it .

0.2004 g of glucose gave on combustion 0.2940 g of CO_(2) and 0.1202 g of H_(2)O . Find the percentage composition.

0.2004 g of glucose gave on combustion 0.2940 g of CO_(2) and 0.1202 g of H_(2)O . Find the percentage composition.