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Here are the calculations for percent calcium in each trial: Great Data Student 1: Filter paper mass: 1.00g Final mass with filter paper: 2.75g Mass of CaCO3 formed: 2.75g - 1.00g = 1.75g Mass of Ca ions in tablet: 1.75g * (40.08g/100.08g) = 0.70g Percent of Ca in tablet: (0.70g Ca ions / 2.50g tablet) * 100 = 28% Student 2: Some solid was transferred, so final mass would be higher, say 2.80g Mass of CaCO3 formed: 2.80

Author

Porus Palluppetta

Language

EN