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5 June, 22:15

sodium hydroxide, NaOH, is dissolved in water to make up a solution that is 1.58 * 10 - 5 M in NaOH. What is the pH

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  1. 5 June, 22:41
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    pH = 9.2

    Explanation:

    pH+pOH=14

    But pOH = - log[OH] = - log[1.58*10^-5] = 4.8

    We can now say

    4.8+pH = 14

    pH = 14-4.8 = 9.2
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