71. Solving a chemistry problem
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71. Solving a chemistry problem
4. The buffer solution contains 0.5 mol/l ammonium hydroxide and 0.25 mol/l ammonium nitrate. Calculate the pH of the solution. How will the pH of this solution change when added to 1 liter of it:
a) 0.2 mol of hydrochloric acid;
b) 0.25 mol of sodium hydroxide?
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