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Plan an experiment to find the percentage loss in mass when barium carbonate is heated. Your plan has to use ordinary laboratory apparatus together with a sample of barium carbonate. No other chemicals may be used. Your plan must include: • the apparatus required • the method to follow and the measurements to record • ways to make the percentage found as accurate as possible • how the measurements are used to work out the percentage loss in mass. You may use a diagram to support your answer.