A 100.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M LiOH. Determine the pH of the solution after the addition of 66.67 mL of LiOH (this is the equivalence point).
Now, if I'm not mistaken, HClO4 is a strong acid and LiOH is a strong base, so at the equivalence point, isn't a strong acid-strong base titration automatically a pH of 7.00? But, answer is said to be 2.76. How is this obtained. I've tried multiple routes and just can not get that answer.