Answer: The normality of unknown acid solution is 0.232 N
Step-by-step explanation:
To calculate the normality of the unknown acid solution, we use the equation:

where,
are the normality and volume of the unknown acid solution
are the normality and volume of NaOH solution
We are given:

Putting values in above equation, we get:

Hence, the normality of unknown acid solution is 0.232 N