5 g of a sample of magnesium carbonate on treatment with excess of dilute hydrochloric acid gave 1.12 L of CO_(2) at STP . The percentage of magnesium carbonate in the mixture is

5 g of a sample of magnesium carbonate on treatment with excess of dil

1.	5 g of a sample of magnesium carbonate on treatment with excess of dilute hydrochloric acid gave 1.12 L of CO_(2) at STP . The percentage of magnesium carbonate in the mixture is
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