The dissociation constant of ammonium hydroxide in an aqueous solution at 25 C is 1.79∙10-5. Find the concentration of hydroxide ions in 0.01 M and the pH of the ammonium hydroxide solution. Show how the pH of an ammonium hydroxide solution changes when 0.1 mol/l ammonium chloride is added to it. Assume that ammonium chloride is completely dissociated.

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