A titanium ore contains rutile (TiO2) plus some oxides of iron and silica. When it is heated with carbon in the presence of chlorine gas, TiClą is formed. TiClą is a liquid and is distilled from the mixture. TIO2 (s) C (s) 2 Cl2 (g) → TiCl4 (1) + CO2 (g) + When 20.1 grams of the ore is heated with carbon and chlorine, 20.8 mL of TiClą is recovered. (TICI4 : Density = 1.73 g/mL; bp. 136 °C, mp. -24 °C). If the typical yield of the reaction is 85.0%, assuming all TiO2 the ore reacts, what is the mass percent of TiO2 in the titanium ore?

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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".