Deildrin, an insecticide, contains `C,H,Cl and O.` Combustion of `29.72 mg` of dieldrin gave `41.21 mg CO_2 and 5.63 mg` of `H_2O` . In a separate analysis `25.31mg` of dieldein was converted into `57.13 mg` Ag Cl. What is the empirical formula of diedrin ?

(i) Butyric acid contains only C, H and O.A4.24 mg sample of butyric acid is completely burned. It gives 8.45 mg of carbon dioxide (CO_(2)) and 3.46 mg of water. What is the mass percentage of each element in butyric acid? (ii) If the elemental composition of butyric acid is found to be 54.2% C, 9.2% H and 36.6%O , determine the empirical formula. (iii) The molecular mass of butyric acid was determined of experiment to be 88 . What is the moleculare formula ?

In a given sample of H_(2)O_(2) each 100 mL of solution contains 68 mg of H_(2)O_(2) . The molarity of the solution is

C+O_(2) rarr CO_(2), Delta H =-93 kJ , for formation of 11 mg of CO_(2) is

What is the total number of atoms present in 25.0 mg of camphor, C_(10)H_(16)O ?

0.12 gm of an organic compound containing phosphorus gave 0.22 gm of Mg_2P_2O_7 by the usual analysis. Calculate the percentage of phosphorus in the compound.