Question

Determine the pH at the equivalence (stoichiometric) point in the titration of 27 mL of 0.24 M C6H5SH(aq) with 0.22 M NaOH(aq). The Ka of thiophenol is 3.2 x 10-7.

Answer 1

6.5 slightly acidic

Step-by-step explanation:

pH =pka - log [acid] / [base]

pH =6.49 - log[0.224]/[0.22]

6.59-0.0377

6.45.