Equilibrium - Result Question 44

####46. The ionization constant of ammonium hydroxide is 1.77×10−5 at 298K. Hydrolysis constant of ammonium chloride is:

(a) 6.50×10−12

(b) 5.65×10−13

(c) 5.65×10−12

(d) 5.65×10−10

[2009]

Show Answer

Solution:

  1. (d) Ammonium chloride is a salt of weak base and strong acid. In this case, hydrolysis constant, Kh can be calculated as

Kh=KwKb=1×10−141.77×10−5=5.65×10−10

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