Question

What volume of a $0.20\text{M}KOH$ solution will exactly neutralize $15\text{mL}$ of a $0.40\text{M}HCl$ solution?

• A. $30\text{mL}$
• B. $20\text{mL}$
• C. $40\text{mL}$
• D. $10\text{mL}$

Answer 1

The correct option is A $30\text{mL}$

The n-factor of $HCl$ is 1
and n-factor of $KOH$ is 1
$(MV{)}_{HCl}=(MV{)}_{KOH}$
$(0.40\times 15)=(0.20\times V)$
Volume of the $KOH$ solution $=30\text{mL}$