What is the pKW at 298 k?(a) 14(b) 7(c) 1(d) 0This question was posed to me in unit test.I'd like to ask this question from Equilibrium in section Equilibrium of Chemistry – Class 11

What is the pKW at 298 k?(a) 14(b) 7(c) 1(d) 0This question was posed

1.	What is the pKW at 298 k?(a) 14(b) 7(c) 1(d) 0This question was posed to me in unit test.I'd like to ask this question from Equilibrium in section Equilibrium of Chemistry – Class 11
Answer» Correct option is (a) 14 The best EXPLANATION: We know that the ionization constant of water at 298 k is given by [H3O^+][OH^–] =1 x 10^-14/mol^2L^2. PKW = pH + pOH = -log[H3O^+] – log[OH^–] = -log[H3O^+][OH^–] = -log10^-14 = log10^14 = 14. Therefore pKW at 298 k is 14.

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