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Mods. Empirical Formula of an Oxide of Tin. Purpose: Within completing this lab, it was intended for the experimenter (student) to determine the empirical formula of an oxide of Tin by means of experimenting. This goal would be accomplished by finding the masses of the various substances experimented with, which 30 mesh tin, Tin Oxide, and Oxygen.
You subtract the oxidation numbers of the ligands from the overall charge of the compound. To find the oxidation number of the ligands: if it is a molecule/polyatomic ion, such as NH3 or OH-, use the standard overall charge of the species. If it is one atom, use the oxidation state rules to look up its oxidation number. number.