Question

An organic compound of molecular wieght is88 contains 54.54%of carbon 13.64%ofhydrogen and 31.82 of nitogen find its molecular formula

Answer 1

Answer:

C4H12N2

Explanation:

Divide each element present by its atomic weight.

as carbon 54.54/12

hydrogen 13.64/1

nitrogen 31.82/14

then you got the ratio 2:6:1

so the imperical formula is C2H6N

then divide the weight of compound(88) by molecular weight of imperical formula(44)

n=88/44=2

then multiply the imperical formula by 2

and we get molecular formula C4H12N2

Answer 2

Answer:C4H12N2

Explanation:Divide each element present by its atomic weight.

as carbon 54.54/12

hydrogen 13.64/1

nitrogen 31.82/14

then you got the ratio 2:6:1

so the imperical formula is C2H6N

then divide the weight of compound(88) by molecular weight of imperical formula(44)

n=88/44=2

then multiply the imperical formula by 2

and we get molecular formula C4H12N2