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19 September, 07:12

What is the pH of a 1.5x10-3M solution of NaOH, a strong base

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Answers (2)
  1. 19 September, 07:13
    0
    The pH of the solution is 11.18

    Explanation:

    Step 1: Data given

    Concentration NaOH solution = 1.5 * 10^-3 M

    Step 2: Calculate pOH

    pH = log[H+]

    pOH = - log [OH-]

    pOH = - log (1.5*10^-3)

    pOH = 2.82

    Step 3: Calculate pH

    pH + pOH = 14

    pH = 14 - pOH

    pH = 14 - 2.82

    pH = 11.18
  2. 19 September, 07:36
    0
    The answer to your question is pH = 11.18

    Explanation:

    Data

    pH = x

    Concentration = 1.5 x 10⁻³ M

    Formula

    pOH = - log[OH]

    pH + pOH = 14

    Process

    1. - Calculate the pOH of the solution

    pOH = - log[1.5 x 10⁻³]

    pOH = 2.82

    2. - Calculate the pH of the solution

    pH + pOH = 14

    solve for pH

    pH = 14 - pOH

    pH = 14 - 2.82

    pH = 11.18
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