Find the final pH of the final solution in a titration

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Katie Clark 3B
Posts: 26
Joined: Fri Sep 25, 2015 3:00 am

Find the final pH of the final solution in a titration

Postby Katie Clark 3B » Sat Dec 05, 2015 9:40 pm

I couldn't understand how to solve for the final pH of the final solution in a titration. For example, in problem 13.23, the question is, what is the pH of the final solution for the titration of 5.00 mL 0.010 M NaOH with 0.005 M HCl. In the problem, we also had to find the initial pH and the pH at the stoichiometric point. I was able to solve for these and got the correct answers. Can someone explain the steps I would take to solve for the final pH. The answer in the solution manual indicated that 30.0 mL of the titrant would be added in the final solution, how do you figure this out?

Albert Chong_1L
Posts: 77
Joined: Fri Sep 25, 2015 3:00 am

Re: Find the final pH of the final solution in a titration

Postby Albert Chong_1L » Sun Dec 06, 2015 11:02 am

pH of a titration of strong base with a strong acid is 7.
The ions attached to the H+ and OH- do not affect pH and combine to produce a neutral salt.

As for finding volume, calculate how many moles of base need to be neutralized.
Then, calculate the volume of acid that will contain that many moles.


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