Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction2K[Ag(CN)2](aq) + Zn(s) ⟶ 2Ag(s) + Zn(CN)2(aq) + 2KCN(aq)(a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of K[Ag(CN)2]?(b) What mass of Zn(CN)2 is produced?

Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction2K[Ag(CN)2](aq) + Zn(s) ⟶ 2Ag(s) + Zn(CN)2(aq) + 2KCN(aq)(a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of K[Ag(CN)2]?(b) What mass of Zn(CN)2 is produced?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.9: Spectrophotometry

Problem 1.1ACP

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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".

Question

Silver is often extracted from ores such as K[Ag(CN)₂] and then recovered by the reaction
2K[Ag(CN)₂](aq) + Zn(s) ⟶ 2Ag(s) + Zn(CN)₂(aq) + 2KCN(aq)
(a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of K[Ag(CN)₂]?
(b) What mass of Zn(CN)₂ is produced?

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