What is the ph of a 0.15 m solution of ammonium chloride?

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asked Apr 20, 2018 189k views

1 Answer

The Matt · Answer 1 · 2018-04-27T01:46:25+0000

Best Answer: (a)
8.9 x 10^-7 = x^2 / 0.15-x
x = [OH-] = 0.00037 M
pOH = 3.4
pH = 14 - 3.4 = 10.6

(b)
Ka = Kw/Kb = 5.6 x 10^-10 = x^2 / 0.20-x
x = [H+] = 0.000011 M
pH = 5.0

What is the ph of a 0.15 m solution of ammonium chloride?

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