1 answer
(click or scroll down)
There are 6 hydrogen atoms in C6H12O6. The atomic mass of hydrogen is 1.00784 g/mol and the molecular mass of C6H12O6 is 180.156 g/mol.
The percent composition of hydrogen in C6H12O6 can be calculated as (6 * 1.00784 g/mol / 180.156 g/mol) * 100% ≈ 6.71%.
Therefore, the correct answer is 7%.