Answer: The molarity of barium hydroxide solution is 0.118 M.
Step-by-step explanation:
To calculate the concentration of acid, we use the equation given by neutralization reaction:

where,
are the n-factor, molarity and volume of acid which is

are the n-factor, molarity and volume of base which is

We are given:

Putting values in above equation, we get:

Hence, the molarity of
solution will be 0.118 M.