What is the concentration of a ca(oh)2 solution if 15.0 ml of 0.750 m h3po4 solution is required to completely neutralize 20.0 ml of the ca(oh)2 solution?

The concentration of comes out to be 0.843 M.

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 concentration of comes out to be 0.843 M.