zakariawhatever5991 zakariawhatever5991

18-11-2022
Chemistry

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limestone contains calcium carbonate. when a 1.25 g impure sample of limestone is added to excess acid, 0.44 g of co2 was evolved. assuming that all the co2 comes from the reaction of caco3 with acid, what is the percent by mass of caco3 in the impure sample?

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