A sample of bismuth weighing 0.687 g was converted to bismuth chloride by reacting it first with HNO3, and then with HCl, followed by careful evaporation to dryness. The   mass of the bismuth chloride obtained was 1.032 g. What is the empirical formula of Bismuth chloride ? Answer= BiCl3 Q3: For the bismuth chloride question given in Q2, what is the theoretical percent of Bi in the bismuth chloride, based on this formula?  [TP] (calculate the percent composition)(give the correct number of sig figs in  your answer).   Answer= 66.3 Q4: Refer to Q2 and Q3 above. From the numerical values in the solution to Q2 and Q3 , calculate the percent error in the experimental determination of empirical formula of bismuth chloride. (give the correct number of sig figs in all your answers)

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Q: 0.279 g of the hydrate CoCl2•nH2O is heated to produce 0.197 g of anhydrous CoCl2 (MM = 129.83…

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Q: determine its empirical formula.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".