Question

Calculate the percentage compositionof elements in h2nconh2

Answer 1

solution is in the pic.

Answer 2

Answer:

66.7

Explanation:

molecular mass =60

ie

(14)+(2)+(12)+(16)+(14)+(2)

SymbolElementAtomic WeightAtoms Mass percent C Carbon 12 1 19.99%

 O Oxygen 16 1 26.64% 

N Nitrogen 14 2 46.64% 

H Hydrogen 1 4 6.67%

Molecular formula of Urea is (NH2)2CO.