An antacid tablet has calcium carbonate as the active ingredient; other ingredients include a starch binder. You

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An antacid tablet has calcium carbonate as the active ingredient; other ingredients include a starch binder. You dissolve the tablet in hydrochloric acid and filter off insoluble material. You add potassium oxalate to the filtrate (containing calcium ion) to precipitate calcium oxalate. If a tablet weighing 0.750 g gave 0.629 g of calcium oxalate, what is the mass percentage of active ingredient in the tablet?

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General Chemistry

ISBN: 9781305580343

11th Edition

Authors: Darrell Ebbing, Steven D. Gammon

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