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27-07-2021
Chemistry

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A solution has a OH- concentration of 7.7x10-3. What is the pH of this solution?

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27-07-2021

Answer:

11.9 pH

Explanation:

First, we need to find pOH

To find that, we use the formula -log[OH]

-log[7.7x10^-3] = 2.11351

To find the pH, we'll use this formula: 14 = pH + pOH

14 = pH + 2.11351

Subtract boths sides by 2.11351

14 = pH + 2.11351

-2.11351 -2.11351

pH = 11.88649

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