Calculate [H⁺] in a 1.2 *10^-⁵ M solution of NH₄Cl. (K_b for NH₃ = 1.8 * 10^-⁵) A) 1.5 * 10^-⁵ M B) 8.2 * 10^-⁸ M C) 1.3 * 10^-⁷ M D) 1.2 * 10^-⁵ M E) 7.7 * 10^-⁸ M

Question

Quizplus · Accepted Answer

The concentration of [H⁺] can be calculated using the formula [H⁺] = √(C * K_w / K_b), where C is the concentration of NH₄Cl and K_w is the ion product of water (1.0 x 10^-14). Substituting the given values, [H⁺] = √(1.2 x 10^-5 * 1.0 x 10^-14 / 1.8 x 10^-5) ≈ 1.3 x 10^-7 M.

Calculate [H+] in a 1

Calculate [H⁺] in a 1