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  What is the pH of 0.100 mol dm-3 ammonia solution if Ka for the ammonium ion is 5.62 x 10-10 mol dm-3? Kw = 1.00 x 10-14 mol2dm-14

Typically pH of ammonia solution will be 11-12 compared with a pH of about 14 of sodium hydroxide solution.  The theoritical pH's below are for ammonia in water at 77 degree Celsius.
03 May 2019
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