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10 Nov 2019
If a neutral solution of water, with pH = 7.00, is cooled to 10oC, the pH rises to 7.27. Which of the following three statements is correct for the cooled water:
(i) [H+] > [OH-],
(ii) [H+] = [OH-], or
(iii) [H+] < [OH-]?
2) Calculate the pH of a 0.075 M solution of ethylamine (C2H5NH2; Kb = 6.4*10-4).
If a neutral solution of water, with pH = 7.00, is cooled to 10oC, the pH rises to 7.27. Which of the following three statements is correct for the cooled water:
(i) [H+] > [OH-],
(ii) [H+] = [OH-], or
(iii) [H+] < [OH-]?
2) Calculate the pH of a 0.075 M solution of ethylamine (C2H5NH2; Kb = 6.4*10-4).
Tod ThielLv2
5 Apr 2019