Question

calculate the % composition of NH2CONH2. [H=1,C=12,N=14,O=16,Mg=24,Na=23,S=32]

Answer 1

Answer:

46.67% N, 26.67% O, 20% C and 13.33% H.

Explanation:

The total molar mass is 60.

Now find percentage of eack by the formula:

% composition = Mass of element/Total mass of compund.