1. Find the molar mass of C3H4:
* Carbon (C) has a molar mass of 12.01 g/mol.
* Hydrogen (H) has a molar mass of 1.01 g/mol.
* Molar mass of C3H4 = (3 * 12.01) + (4 * 1.01) = 40.07 g/mol
2. Find the mass of hydrogen in C3H4:
* Mass of hydrogen = (4 * 1.01 g/mol) = 4.04 g/mol
3. Calculate the percentage composition of hydrogen:
* Percentage composition = (Mass of hydrogen / Molar mass of C3H4) * 100%
* Percentage composition = (4.04 g/mol / 40.07 g/mol) * 100%
* Percentage composition ≈ 10.08%
Therefore, the percentage composition of hydrogen in C3H4 is approximately 10.08%.
