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Homework Help: Variable Mole reaction.

  1. Sep 25, 2009 #1
    1. The problem statement, all variables and given/known data

    3 moles of X and 2.8 moles of Y are allowed to react. How much X will actually react?

    X + 5Y > 3Z

    2. Relevant equations

    Not sure

    3. The attempt at a solution

    Not sure
  2. jcsd
  3. Sep 25, 2009 #2
    I think its 1 mole but not sure.
  4. Sep 25, 2009 #3


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    Homework Helper
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    This is merely a stoiciometry exercise, somewhat generalized. Find which reactant is the limiting reactant; that determines how much of the other reactant will be consumed.

    The written reaction shows 1 mole of X; the situation uses 3 moles of X.
    The written reaction shows 5 moles of Y; the situation uses 2.8 moles of Y.
    Either X or Y is likely to be in excess. Which one? The other is then the limiting reactant.
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