0.8750 gram of amuminum was heated in a stream of chlorine gas to give 4.3250 grams of aluminum cloride. find the empirical formula of aluminum chloride
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Expert's answer
2018-04-07T08:15:13-0400
0.8750 g Al / 26.98 g/mol = 0.0324 mol Al atoms 4.3250 g – 0.8750 g = 3.45 g Cl atoms 3.45 g / 35.453 g/mol = 0.0973 mol Cl atoms Divide both by the smallest. Al: 0.0324 / 0.0324 = 1 Cl: 0.0973 / 0.0324 = 3 AlCl3 - the empirical formula of aluminum chloride.
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