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30 December, 23:49

A 2.5600 gram sample of a sulfur-containing compound is analyzed by precipitating the sulfur as BaSO4. If 1.1756 g of BaSO4 are obtained, what is the percentage of sulfur in the sample?

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  1. 31 December, 03:16
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    Supposing all the sulfur in the BaSO4 came from the sample being analyzed:

    (1.1756 g) / (233.3909 g/mol) x (1 mol S / 1 mol BaSO4) x (32.0655 g S/mol) / (2.5600 g) = 0.063092

    = 6.3092% Sulfur
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