Now in our discussion of the titrations dealing with weak bases and strong acids, we're now going to take a look at calculations around the equivalence point. We're going to say in this part of the titration, the moles of weak acid is equal to the moles of strong base. We're going to say because they're equal in amount.

We're going to say the weak base and strong acid have been neutralized. And if they've been completely neutralized, what we're going to have left is some weak acid or conjugate acid remaining, right? And we're going to say since we're at the equivalence point, we could find the equivalence volume of our titrate.

To do that, we use the formula molarity of the acid. M acid × V acid= M base × V base. This would help us to determine the equilibrium volume of our titrate, right. So we use it if we need to find the volumes of both the titrate and titrate. So keep this handy when necessary.

All right, so now let's take a look at calculations where we have to calculate the pH at the equivalence point.