61. Anhydrous chromium(III) chloride, CrCl3, is prepared by reacting Cr₂O3 with CCl4 at 800°C. Identify the limiting reagent (LR) and calculate the number of grams left over of the reagent in excess, given 10.0 g of Cr₂O3 and 24.0 g of CCl4. Cr₂O3 + 3CCl4 → 2CrCl3 + 3 COCI₂ a. LR CCl4, 2.1 g Cr₂O3 d. LR Cr₂O3, 3.70 g CCl4 b. LR CCl4, 3.70 g Cr₂O3 c. LR Cr₂O3, 10.0 g CCl4 e. LR Cr₂O3, 6.75 g CCl4

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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".