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Calculate the empirical and molecular f...

Calculate the empirical and molecular formula of the compound containing 80% Carbon, 20% Hydrogen. If the molecular mass of the compound is 30 then determine the molecular formula.

Text Solution

Verified by Experts

For `C rArr 80//12 = 6 . 6`
For ` H rArr 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 emperical formula is `CH_(3)`and its mass is 15
Now to calculate n we have 30/15 = 2
so molecular formula is `CH_(3) xx 2 = C_(2) H_(6)`
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