Chemistry help on calculations!?
2015-05-27 6:07 am
a 2.5600 g sample of a compound that contains sulfur is analyzed by precipitating all the sulfur as BaSO4. If 1.1756 g of BaSO4 are obtained in the analysis, what is the percentage of sulfur in the original compound?
回答 (1)
2015-05-27 6:47 am
BaSO4 contains 13.7388 % sulfur
13.7388 % of 1.1756g = 0.161513 g of S
% S in the sample = 0.161513 / 2.5600 = 6.31% S
13.7388 % of 1.1756g = 0.161513 g of S
% S in the sample = 0.161513 / 2.5600 = 6.31% S
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