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    Solving for pH, pOH and [H+]

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    Please provide assistance with the following questions:

    1. Processed cheese must be at a pH of 5.5 to 5.9 to prevent the growth of unwanted microorganisms. The quality control supervisor receives a report that a sample has a [OH-] of 1.2x10^-8. Find pH, pOH, [H+] of this sample.

    2. How many grams of potassium hydroxide, KOH, would be necessary to prepare 175 mL of a solution that is 0.45M in KOH? What is the pH of this solution?

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    Solution Preview

    a) pOH = -Log[OH-] = -Log(1.2x10^-8 = 7.92

    pH + pOH = 14
    pH = 14-pOH = 14-7.92 = 6.08

    pH = ...

    Solution Summary

    This solution is comprised of a completed response which works through all of the steps required for both of these calculation based chemistry problems. All of the necessary equations and variables are provided.

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