Calculate the pH at the equivalence point for the titration of 0.20 M HCl with 0.20 M NH₃ (K_b = 1.8 * 10^-5).

Name: Calculate the pH at the equivalence point for the titration of 0.20 M HCl with 0.20 M NH 3 (K b = 1.8 * 10 -5 ).
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Quizplus · Accepted Answer

At the equivalence point, the solution contains NH4Cl. NH4+ is a weak acid, and its pH can be calculated using the Kb of NH3 to find the Ka of NH4+. The pH is slightly acidic, around 5.12.

Calculate the PH at the Equivalence Point for the Titration