Asked by hamed shirazi
what is the pH of .10 M NH4CL?
Answers
Answered by
DrBob222
The hydrolysis of the NH4^+ is what determines the pH of the solution.
..........NH4^+ + H2O ==> NH3 + H3O^+
I..........0.1.............0.....0
C...........-x.............x.....x
E.........-0.1-x...........x.....x
Ka for NH4^+ = (Kw/Kb for NH3) = (x)(x)/(NH4^)
Substitute and solve for x = (H3O^+), then convert to pH.
..........NH4^+ + H2O ==> NH3 + H3O^+
I..........0.1.............0.....0
C...........-x.............x.....x
E.........-0.1-x...........x.....x
Ka for NH4^+ = (Kw/Kb for NH3) = (x)(x)/(NH4^)
Substitute and solve for x = (H3O^+), then convert to pH.
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