Answer:
53.33%
Explanation:
First, let us calculate the molar mass of H5C2O. This is illustrated below:
MM of H5C2O = (5x1) + (2x12) + 16
= 5 + 24 + 16 = 45g/mol
There are 2 atoms of carbon in H5C2O.
Therefore, the percentage composition of carbon in H5C2O is given by:
(24/45) x 100 = 53.33%