0

Guest

Courses New

what is the simplest formula of the compound which has the following percentage composition : carbon 80%, hydrogen 20%, if the molecular mass is 30, calculate the molecular formula.

what is the simplest formula of the compound which has the following percentage composition : carbon 80%, hydrogen 20%, if the molecular mass is 30, calculate the molecular formula.

Grade:11

1 Answers

Viresh kumar
40 Points
6 years ago
Let there be 100 gram of substance 
Then,C is 80 gram and Hydrogen is 20 Gram
Then,COmpound is:
C80/12H20/1
C6.67H20
Dividing by 6.67
=> CH3(This is Emperical Formula)
Molecular Mass of CH3 is 12 + 3 = 15
M.M. of Compound = 30
So,n=30/15=2
Now multiplying the Emperical Formula by 2,
=> C2H6

Think You Can Provide A Better Answer ?

Other Related Questions on 9 grade science

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More