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Question
The hydroxide ion concentration of a solution is 1 × 10–11M. What is the pH of the solution?
Sum
Solution
[OH–] = 1 × 10-11 M
pOH = – log[OH–]
= – log[1 × 10-11]
= -log101 – log1010-11
= -(-11) log1010 = 11
pOH = 11
pH + pOH = 14
pH = 14 – 11
pH = 3
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Ph Calculation
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Chapter 10: Types of Chemical Reactions - Evaluation [Page 154]
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