What is the pH at the equivalence point in the titration of 100 mL of 0.10 M HCN (K_a = 4.9 × 10^-10)with 0.10 M NaOH?

Name: What is the pH at the equivalence point in the titration of 100 mL of 0.10 M HCN (K a = 4.9 × 10 -10 )with 0.10 M NaOH?
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Quizplus · Accepted Answer

At the equivalence point, the weak acid HCN is completely converted to its conjugate base CN-. The pH is determined by the hydrolysis of CN-, which makes the solution basic. The pH is greater than 7, and for weak acids like HCN, it is typically around 11.

What Is the PH at the Equivalence Point in the Titration