Question

A compound containing 90% of carbon and 10 % of hydrogen empirical formula of the compound is

Answer 1

Here is your answer.
Given C 90%, H10%.
So Moles of element C = 90/12 =7.5
So Moles of element H = 10/1 =10

Simplest molar ration of carbon= 7.5/7.5=1

Simplest molar ration of H= 10/7.5=1.33

whole no ratio element C= 1*3=3

whole no ratio element H= 1.33*3=4

so its C3H4

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Answer 2

Answer:

C3H4

Explanation:

We have to calculate the empirical formulae-

Element    Percent   Mass   Percent/Mass   Ratio  

 C                90%         12               7.5                   3

 H                10%           1                10                     4

Therefore we put the numbers and get the value- C3H4

GREAT! You did it!