Q7. Limits of pH and the pH scale at 25 °C
The activity product (a(H⁺) × a(OH⁻)) of pure water is 1 × 10⁻¹⁴ at 25 °C. What will be the minimum and maximum possible values of pH for an aqueous solution at that temperature? Give reasons in support of your answer. Finally give the pH scale of aqueous solution at 25 °C.
Model answer
The free solution for 2019 answers questions 1, 2, 3, 4, 6, 8, 9, 11, 12 and 13, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.
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