CBSE Class 11-science Answered
calculate [H3O+]and pH of 0.1M solution of NH4NO3. Kb for NH3 is 1.8*10^-5.What per cent of salt is hydrolysed.
Asked by | 27 Oct, 2012, 09:53: AM
Expert Answer
NH4+ + H2O ------------- NH3 + H3O+
Ka = 1X 10-14/1.8 X 10-5 = 5.6 X 10-10
5.6 X 10-10 = x2 x 25
So, x = 1.2 X 10-5 M =[H3O+]
Ka = 1X 10-14/1.8 X 10-5 = 5.6 X 10-10
5.6 X 10-10 = x2 x 25
So, x = 1.2 X 10-5 M =[H3O+]
pH = - log 1.2 X 10-5 = 4.9
Answered by | 14 Dec, 2012, 07:25: PM
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