Tin(IV) sulfide, SnS2,SnS2, a yellow pigment, can be produced using the following reaction. SnBr4(aq)+2Na2S(aq)⟶4NaBr(aq)+SnS2(s)SnBr4⁢(aq)+2⁢Na2S(aq)⟶4NaBr(aq)+SnS2⁢(s) Suppose a student adds 31.5 mL31.5 mL of a 0.522 M0.522 M solution of SnBr4SnBr4 to 39.0 mL39.0 mL of a 0.204 M0.204 M solution of Na2S.Na2S. Identify the limiting reactant. SnS2SnS2 NaBrNaBr SnBr4SnBr4 Na2SNa2S Calculate the theoretical yield of SnS2.SnS2. theoretical yield:   gg The student recovers 0.391 g0.391 g of SnS2.SnS2. Calculate the percent yield of SnS2SnS2 that the student obtained. percent yield:     %

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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".