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    marmari's Avatar
    marmari Posts: 1, Reputation: 1
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    #1

    Apr 10, 2010, 08:56 AM
    Concentration of sodium ions
    Sodium phosphate has the formula Na3PO4. Determine the concentration of sodium ions in a 0.6mol dm-3 solution of sodium phosphate?
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #2

    Apr 12, 2010, 12:27 PM
    Lets see, dm-3 means decimeters cubed. 1 cc = 1 mL. There are 1000 mL in a L. There are 1000 cc's in a dm-3. So I'm guessing dm-3 is a fancy lingo for liter. There are 3 moles of sodium ions per sodium phosphate mole. That means there will be 3 times the Ions as the number of molecules. That means there will be (3 x 0.6) 1.8 moles of sodium ions in 1L of 0.6 molar sodium phosphate solution.
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