cullenp7420 cullenp7420 06-12-2022 Chemistry contestada Kb for ammonia (NH3) is 1.76 x 10-5 What is Ka for ammonium, its conjugate acid. (NH4+) 3 sig figs Answer: 5.68x10^-10 Using the answer above, what is the pH of a 0.140 M solution of NH4+?