Answer: Molarity of
is 0.121 M
Step-by-step explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

where,
n= moles of solute
= volume of solution = 10 ml

According to the neutralization law:

where,
= molarity of
solution = 0.074 M
= volume of
solution = 10 ml
= molarity of
solution = ?
= volume of
solution = 12.23 ml
= valency of
= 2
= valency of
= 1


Therefore, the molarity of
is 0.121 M