Question

A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found to be 47.623

1. What is the mass of pure calcium carbonate product collected at the end of the experiment?
2. Calculate the mass % of calcium carbonate in the tablet.

Answer 1

See 6:36pm post by Sam.