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    i feel like all i do is post questions to help me with my chemistry but here it goes...

    a student looking at the chemistry of a lime kiln discovered that if they thermally decomposed 800g of calcium carbonate they would produce 314g of calcium oxide
    a) calculate the percentage yeild

    The problem is the answer is given (70.0) but when i work it out or try to i get 56 or there abouts.


    PLEASE CAN SOMEONE TELL ME HOW TO DO IT PROPERLY

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    (moles of CaO/moles of CaCO3) x 100 = [(314/56)/(800/100)] x 100 = 70%
 
 
 
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