Question

find the mass percentage composition of Methane(CH4)​

Answer 1

Explanation:

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Answer 2

Answer:

In methane there are only 2 elements, Carbon and Hydrogen.

The total mass of a methane molecule (CH4) is

4 x 1 + 12 = 16.

%mass of H in methane= 4/16 x 100% = 25%

%mass of C in methane = 12/16 x 100% = 75%