Determine the K_a of an acid that has a pH of 3.29 and a concentration of 0.55 M. A) 4.8× 10^-7 B) 9.5 × 10^-6 C) 8.6 × 10^-11 D) 2.5 × 10^-3 E) 3.6 × 10^-8

Question

Quizplus · Accepted Answer

The pH of 3.29 indicates an [H⁺] of 5.13 × 10⁻⁴ M. Using the formula Kₐ = [H⁺]² / [HA], where [HA] is the initial concentration of the acid (0.55 M), we find Kₐ = (5.13 × 10⁻⁴)² / 0.55 = 4.8 × 10⁻⁷.

Determine the Ka of an Acid That Has a PH

Determine the K_a of an Acid That Has a PH