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Homework Help: Molarity of Unknown and sodium hydroxide.

  1. Mar 23, 2009 #1
    This is the question:

    I solved for the molar mass of 3 choices, but I don't know how to get the molar mass from the problem. I can get # of moles in the solution but what about gram???

    molar mass= gram/moles....

  2. jcsd
  3. Mar 23, 2009 #2


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    Your titration will tell you how many moles of H+ are present. The result should be an integer multiple of 0.2128.

    Enough of a hint?
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