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18 October, 15:16

What is the pH of a 5.4 x 10-3 M HCl solution?

A. 2.3

B. 3.3

C. 3.7

D. 11.7

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Answers (1)
  1. 18 October, 15:46
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    Answer: A. 2.3

    Explanation:

    pH of a solution is given by the following mathematical expression;

    pH = - Log [ H+]

    = - Log [ 5.4 x 10-3]

    = 3 - 0.7324

    pH = 2.27 aprrox 2.3
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