Chemistry

A compound is found to contain 63.52 % iron and 36.48 % sulfur. Find its empirical formula.

FeS
FeS2
Fe2S
Fe2s3

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  1. look at 100 g of the compound

    63.52 g Fe and 36.48 g S

    the formula is by moles
    ... so divide the weights by the molar masses
    ... the ratio of the quotients is the ratio of the atoms
    ... 1:1 , 1:2 etc.

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