Question

a compound contains 80 % carbon and 20 %hydrogen then molecular for​

Answer 1

Answer:

for c 80/12=6.6

for h 20/1=20 now divide 6.6 and 20 by 6.6 to get simple whole no. ratio of C and H which will come 1:3 so empirical formula is CH3 and its mass is 15

now to calculate n we have 30/15=2

so molecular formula is ch3 x 2 =C2H6

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Answer 2

Answer:

c2H6

Explanation:

The emperical formula is CH3.Then empirical mass is 2 .So( CH3)2 =C2H6