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17 August, 22:46

7.62g of iron reacts with 8.67g of sulfur what is the percentage yield if only 8g of Fes is produced

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  1. 18 August, 01:56
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    Fe + S = FeS (ratio is 1:1)

    Molar mass of FeS = 87.9107 g/mol

    (0.1364 mol Fe) x (1/1) x (87.9107 g FeS/mol) = 12.0 g FeS

    Theoretical yield = 12.0 g FeS

    If the actual yield of FeS = 8g

    Then percent yield (8 g / 12.0 g) = 0.67 = 67%
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