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23 September, 16:53

How many moles of Al2O3 will be formed when 27 grams of Al reacts completely with O2?

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  1. 23 September, 20:47
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    mole = mass in g / molecular weight

    molecular weight of Al2O3 = 2 (13) + 3 (16) = 74g/mol

    reacting mass = 27 g

    mole = 27/74 = 0.36mol
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