The hydrolysis of NH₄F will result in which of the following types of solutions given: (K_a(NH₄⁺) = 5.6 x 10^-10, K_b(F^-) = 1.4 x 10^-11) A) acidic, pH 7 C) neutral, pH = 7

Question

The hydrolysis of NH₄F will result in which of the following types of solutions given: (K_a(NH₄⁺) = 5.6 x 10^-10, K_b(F^-) = 1.4 x 10^-11) A) acidic, pH < 7 B) basic, pH > 7 C) neutral, pH = 7

Quizplus · Accepted Answer

The first dissociation constant (KS1U1B1aS1U1B0) is much larger than the second (KS1U1B1bS1U1B0), indicating that the proton will more readily dissociate from the NHS1U1B14S1U1B0F group than from the FS1U1P1- group. This means that upon hydrolysis, the solution will have an excess of H+ ions, making it acidic with a pH less than 7.

The Hydrolysis of NH4F Will Result in Which of the Following

The Hydrolysis of NH₄F Will Result in Which of the Following