# Question #8911b

##### 1 Answer
Nov 10, 2016

Number of hydrogen atoms in 1 molecule of ${C}_{3} {H}_{\textcolor{red}{7}} O$ : $\textcolor{red}{7}$ H atoms

Therefore, 5 molecules will contain ; $5 \times \textcolor{red}{7} = 35$ H atoms

Hope this is helpful :)