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Chemistry regarding moles!

  1. Jan 10, 2007 #1
    1. The problem statement, all variables and given/known data
    How many moles is 34.8 of sodium hypochlorite ?

    2. Relevant equations
    34.8g (1mol/____g) = ______mol

    3. The attempt at a solution

    34.8g (1mol/58.44g) = 2033.712mol

    Not quite sure if this is how things work, hopefully you can give me a few hints.
  2. jcsd
  3. Jan 10, 2007 #2
    It is the right idea but,
    The Molar mass of NaClO is not 58.44g/mol (I think it is 74.44 g/mol) -- look it up. Second even if it were 58.44, 34.8g (1mol/58.44g) is NOT 2033.712mol. It has to be less than one mole since the amount you have is less than the molar mass. You did your math wrong AND used an incorrect constant. Try again.
    Last edited: Jan 10, 2007
  4. Jan 11, 2007 #3
    First the molar mass of NaOCl is=22.99+16.00+35.5
    =74.49 g/mol
    other than that , your can find the number of moles by :
    number of moles of NaOCl = mass of NaOCl used / molar mass of NaOCl
    therefore , you can simply use : 34.8/74.49
    so here comes the answer = 0.4672 mol
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