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Math Help - Gen Chem: theoretical yield

  1. #1
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    Gen Chem: theoretical yield

    compute the theoretical yield of product (in moles) for each of the following initial amounts of reactants.
     2 Mn(s) + 2 O_2(g)  > 2MnO_2(s)
    a) 5 mol Mn, 5 mol O_2
    b) 4 mol Mn, 7 mol O_2
    c) 28.5 mol Mn, 44.8 mol O_2

    i'm not sure how to solve this, the examples in the book had it in grams in stead of moles.
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  2. #2
    Member Greengoblin's Avatar
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    surely since MnO_2 needs only one mole of Mn and one mole of O_2 then the number of moles of MnO_2 is equal to the lowest number of moles of the two reactants? So a = 5 mol, b = 4 mol, c = 28.5 mol ? Then the remaining reactants goes unreacted?

    edit: Why doesn't \mbox work?
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