Answer: 8.1 %
Explanation:
Molecular mass of [tex]C_{14}H_{19}NO_2[/tex] = 235 g/mol
Atomic mass of hydrogen atom = 1 g/mol
Percentage of an element in a compound:
[tex]\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100[/tex]
Mass Percentage of hydrogen:
[tex]\frac{19\times 1g/mol}{235 g/mol}\times 100=8.1\%[/tex]
The mass percent of hydrogen in [tex]C_{14}H_{19}NO_2[/tex] is 8.1%.
