0.37 g of the compound gave 0.063 g of AgBr in Carius method. Determine the percentage bromine in the compound.

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

0.246 g of an organic compound gave 0.198 g of CO_2 and 0.101 g of H_2O on complete combustion calculate the percentage composition of Carbon and Hydrogen.

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.

A gaseous compound is composed of 85.7% by mass carbon and 14.3% by mass hydrogen. Its density is 2.28 g/litre at 300 K and 1.0 atm pressure. Determine the molecular formula of the compound.

On strongs heating, One gram of the silver salt of an organic dibasic acid yields 0.5934 g of silver. If the mass percentage of carbon in it 8 times the mass percentage of hydrogen and one - half the mass percentage of oxygen, determine the molecular formula of the acid.

In an ore, the only oxidizable material is Sn^(2+) . This ore is titrated with a dichromate solution containing 2.5g of K_(2)Cr_(2)O_(7) in 0.5 "litre" . A 0.40 g sample of the ore required 10.0 cm^(3) of titrant to reach equivalence point. Calculate the percentage of tin in ore.

The vapour pressure of water at 293K is 0.0231 bar and the vapour pressure of a solution of 108.24 g of a compound in 1000 g of water at the same temperature is 0.0228 bar. Calculate the molar mass of the solute.