3. A sample of a salt has the percentage composition : Fe = 36.76: S = 21.11 and 0 = 42.14
Calculate the empirical formula of the compound.
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Explanation:
Fe= 36.76/56= 0.65/0.65= 1
S= 21.11/32= 0.65/0.65=1
O= 42.14/16= 4.04= 4
empirical formula= feSO4
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