A compound contains equal masses of the elements `A, B` and `C`. If the atomic masses of `A,B` and `C` are `20,40` and `60` respectively, the empirical formula of the compound is

C_(40)H_(56) is the empirical formula of

Elements A, B and C have atomic numbers 9, 20 and 10 respectively. Write down the formula of the compound formed by two of the above elements.

A compound contains elements X and Y in 1 : 4 mass ratio. If the atomic masses of X and Y are in ratio 1 : 2, then empirical formula will be

A compound contains C=90% and H=10% Empirical formula of the compound is:

Carbon combines with hydrogen to forom three compounds A, B and C . The percentage of hydrogen in A, B and C .is 25, 14.3, and 7.7, respectively. (a) Find the empirical formula of the compounds.

An organic compound contains 40%C, 6.6%H . The empirical formula of the compound is

A compound of X and Y has equal mass of them. If their atomic weights are 30 and 20 respectively. The molecular formula of compound is :-

The percentage of C, H and N in an organic compound are 40% , 13.3% and 46.7% respectively then empirical formula is

A compound contains C=40%,O=53.5% , and H=6.5% the empirical formula formula of the compound is: