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22 January, 06:58

Bismuth oxide reacts with carbon to form bismuth metal. When 414 g ot Bismuth oxide react with excess carbon, how many moles of Bi form

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  1. 22 January, 07:24
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    1.78 mol. When 414 g of bismuth oxide react with excess carbon, 1.78 mol of bismuth form.

    a) Start with the balanced chemical equation

    2Bi2O3 + 3C → 4Bi + 3CO2

    b) Convert grams of Bi2O3 to moles of Bi2O3

    Moles of Bi2O3 = 414 g Bi2O3 x (1 mol Bi2O3/465.96 g Bi2O3) = 0.8885 mol Bi2O3

    c) Use the molar ratio of Bi:Bi2O3 to convert moles of Bi2O3 to moles of Bi

    Moles of Bi = 0.8885 mol Bi2O3 x (4 mol Bi/2 mol Bi2O3) = 1.78 mol Bi
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