Calculate the [OH^-] in an aqueous solution that is 0.125 M NH₃ and 0.125 M NH₄Cl .The value of K_b for NH₃ is 1.8 * 10 ^-⁵.

Question

Quizplus · Accepted Answer

The concentration of OH- is determined by the basic dissociation of NH3 in water, not by the presence of NH4Cl. NH4Cl is a salt that dissociates completely in water, but it does not contribute directly to the concentration of OH-. The given Kb value for NH3 (1.8 * 10^-5) represents the equilibrium constant for its reaction with water to produce NH4+ and OH-. Since the concentration of NH3 is 0.125 M and assuming it's a weak base with a small degree of dissociation, the concentration of OH- produced will be directly related to the Kb and the initial concentration of NH3, but the exact calculation requires more information than provided. However, the presence of NH4Cl does not change the concentration of OH- produced by the dissociation of NH3.

Calculate the [OH-] in an Aqueous Solution That Is 0

Calculate the [OH^-] in an Aqueous Solution That Is 0