Question

The number of moles of water present in $180gm$ of water is

• A. 18
• B. 5
• C. 100
• D. 10

Answer 1

Answer: (D)

Molecular weight of water $=18$

$\therefore$ No. of moles of water $=\frac{\text{ Mass }}{\text{ Molecular mass }}$

$=\frac{180}{18}=10$ moles