Question

Give the mass percent of hydrogen in c14h19no2.

Answer 1

Mass Percent of Hydrogen is 8.2085%

Answer 2

Answer: 8.1 %

Step-by-step 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}* \text{Atomic mass of element}}{\text{molecular mass of element}}* 100`

Mass Percentage of hydrogen:

`(19* 1g/mol)/(235 g/mol)* 100=8.1\%`

The mass percent of hydrogen in
`C_(14)H_(19)NO_2` is 8.1%.