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Math Help - H3PO4+NaOH---> ???

  1. #1
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    H3PO4+NaOH---> ???

    I am stuck on a question for my homework. I know how to write the equation, but it says it forms 3 salts? All I'm getting is this: H3PO4+3NaOH--->3H20+Na3PO4.

    This is the question:
    H3PO4 can form three salts when it reacts with NaOH. Write the formula of each of these salts. Do not include physical states in your answers.

    Salt with lowest molar mass:
    Salt with intermediate molar mass:
    Salt with higher molar mass:

    I have no idea what to do?
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  2. #2
    Pim
    Pim is offline
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    There are 3 H in H_3PO_4. You can have reactions with one, two or three H atoms. You already have the one with 3.
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