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Chemistry

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What is the pH of a saturated solution of lead(II) hydroxide?
The Ksp= 4.0 X 10-15.

a) 4.7 b) 7.2 c) 9.0 d) 9.1 e) 9.3

What should I do to solve for this? Thank you

  • Chemistry -

    Let x = solubility of Pb(OH)2 in mols/L.
    Pb(OH)2 ==> Pb^2+ + 2OH^-
    ....x........x.......2x
    Ksp = (Pb^2+)(OH^-)^2
    Substitute from the chart above and solve for x, find 2x, then convert to pH.

  • Chemistry -

    ? lost- what chart?

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