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Titration of CaCO3 in Toothpaste by api-266034924 is a document available to read on EtoBox.

The document describes an experiment to determine the amount of calcium carbonate (CaCO3) in toothpaste using back titration. Students weighed out samples of toothpaste and treated them with hydrochloric acid and sodium hydroxide, recording the volumes needed to reach the endpoint, indicated by a color change in phenolphthalein. Three trials were performed and the average amount of CaCO3 calculated was 0.1536 mg/g of toothpaste with low variability between trials. The results supported the hypothesis that l

Author

api-266034924

Language

EN