Question

Give the mass percent of hydrogen in c14h19no2.

Answer 1

Mass Percent of Hydrogen is 8.2085%

Answer 2

Answer: 8.1 %

Explanation:

Molecular mass of $C_{14}H_{19}NO_2$  =  235 g/mol

Atomic mass of hydrogen atom = 1 g/mol

Percentage of an element in a compound:

$\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100$

Mass Percentage of hydrogen:

$\frac{19\times 1g/mol}{235 g/mol}\times 100=8.1\%$

The mass percent of hydrogen in $C_{14}H_{19}NO_2$ is 8.1%.