Answered: K2C204 • H2Olag) + CaCl2 • 2H2O(ag) →…

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

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

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

Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability

Section: Chapter Questions

Problem 42IL

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Transcribed Image Text:K2C204 • H2Olag) + CaCl2 • 2H2O(ag) → CaC204 • H2O(s) + 2KCI(ag) + 2H2O) Unspecified amounts of CaCl2 • 2H2O and K2C2O4 • H2O were reacted and the calcium oxalate precipitate was allowed to settle to the bottom of the beaker. Two samples of clear supernatant were tested for the presence of unreacted ions by adding calcium chloride to one sample and potassium oxalate to the other. The sample in which calcium chloride was added showed the formation of a white precipitate whereas the sample in which potassium oxalate was added remained a clear solution. From this profile, identify the limiting reactant. Justify your answer.

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