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pH of a dilute solution of a strong monoacidic base (NaOH, KOH)

The same question, asked 3 times: 3 May 2023 S2*, 15 May 2023 S2*, 11 May 2024 S2. Every wording below, oldest first.

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  1. Question 1

    3 May 2023 S2

    76
    Calculate pH of 0.002 M KOH solution.

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  2. Question 2

    15 May 2023 S2

    53
    An aqueous solution of strong monoacidic base is of 1×10−4 M1 \times 10^{-4}\text{ M}. What is the value of pH at 25∘C25^\circ\text{C}?

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  3. Question 3

    11 May 2024 S2

    53
    What is the pH of 0.005 M NaOH solution?

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