Toxic chromate can be precipitated from an aqueous solution by bubbling sulfur dioxide through the solution. How many grams of sulfur dioxide are required to treat 1.1 L of 0.12 M chromate? 2 CrO42-(aq)  +  3 SO2(g)  +  4 H+(aq)  →  Cr2(SO4)3(s)  +  2 H2O(l) Your answer should have 2 sig figs. Molar Masses if needed:  H2O  18.02 g/mol,  Cr2(SO4)3  392.21 g/mol,  SO2  64.07 g/mol

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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".