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chemistry

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A saturated aqueous solution of calcium hydroxide has a pH of 12.25. What is the [Ca2+] of such a solution?

  • chemistry -

    In the absence of other information (temperature) write molecular formula for calcium hydroxide and complete the word equation below as a chemical equation.

    calcium hydroxide = calcium ions + hydroxide ions

    This will tell you how many moles of hydroxide ions are associated with one mole of calcium ions.

    Use [H+]=10^-pH to calculate the [H+]

    The use 10^-14=[H+][OH-] to calculate [OH-]

    Then knowing how many moles of hydroxide ions are associated with one mole of calcium ions you can calclate [Ca2+]

  • Chemistry -

    8.8914 * 10^-3 moles per litre of solution

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