Question

Number of moles of hydrogen atoms present in $60$ amu of acetic acid:

• A. $\frac{4}{N_A}$
• B. $4$
• C. $1$
• D. $\frac{1}{N_A}$

Answer 1

Answer: (A)

$1$ molecule of $C{H}_{3}COOH=60amu$
$1$ molecule $C{H}_{3}COOH=4$ atoms of $H$
$=\frac{4}{N_A}\text{ atoms of }H$