Chemistry

1st a reacting mass calculation of the maximum amount of FeS that can be formed: Relative atomic/formula masses: Fe =56, FeS = 56 + 32 = 88 . This means 56g Fe ==> 88g FeS, or by ratio, 2.8g Fe ==> 4.4g FeS . because 2.8 is 1/20th of 56, so theoretically you can get 1/20th of 88g of FeS. 2nd the % yield calculation itself. ................
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