Calculate the pH. Please show steps.
Nitric acid 0.00125 M
Acid
Potassium hydroxide 0.00133 M
Base
Ammonia 0.00120 M
Base
Hypochlorous acid...
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Chemistry
Calculate the pH. Please show steps.
Nitric acid 0.00125 M
Acid
Potassium hydroxide 0.00133 M
Base
Ammonia 0.00120 M
Base
Hypochlorous acid 0.00128 M
Acid
Sodium hypochlorite 0.000125 M
Base
Ammonium chloride 0.00142 M
Salt
Carbonic acid 0.00144 M
Acid
Hydrochloric acid 4.55 M
Acid
Phosphoric acid 0.20 M
Acid
Answer & Explanation
Solved by verified expert
3.6 Ratings (455 Votes)
pH log 000125 29030strong acid so 100ionisationpOH log 000133 287614strong base so 100ionisationpH 14 pOHso pH 111238Ammonia is a weak base with Kb 175 105 and in thiscase cweak base Kb that is the equation to useisOH sqrtKb Cweakbase SQRT175 105000120 1449 104pOH logOH log1449104 383889pH 14 pOH 10161hypochlorus acid is a weak acid with Ka 288 108and in this case cweak acid Ka that is the equationto use
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