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9.A A process called selective precipitation allows for one ion to be removed from a solution containing other ions, with only the ion of interest being precipitated out of solution. This process is used in the purification of drinking water. The process occurs by selecting an ion and then carefully controlling its concentration in the solution. A solution contains 0.010 mol/L silver ions, Ag¹(aq), and 0.010 mol/L strontium ions, Sr²+ (aq). a. Which ion will precipitate out first when a dilute solution of potassium chromate, K₂CrO₂(aq), is added to the mixture? (Hint: Use Ksp values for the two solids that form to determine the concentrations of chromate ion, CrO, (aq), needed for each solid to form.) b. What percentage of the ion that precipitates first will remain unprecipitated when the second ion starts to precipitate?

9.A A process called selective precipitation allows for one ion to be removed from a solution containing other ions, with only the ion of interest being precipitated out of solution. This process is used in the purification of drinking water. The process occurs by selecting an ion and then carefully controlling its concentration in the solution. A solution contains 0.010 mol/L silver ions, Ag¹(aq), and 0.010 mol/L strontium ions, Sr²+ (aq). a. Which ion will precipitate out first when a dilute solution of potassium chromate, K₂CrO₂(aq), is added to the mixture? (Hint: Use Ksp values for the two solids that form to determine the concentrations of chromate ion, CrO, (aq), needed for each solid to form.) b. What percentage of the ion that precipitates first will remain unprecipitated when the second ion starts to precipitate?

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter17: Solubility And Complex-ion Equilibria
Section: Chapter Questions
Problem 17.15QP: Solubility and Solubility Product You put 0.10-mol samples of KNO3, (NH4)2S, K2S, MnS, AgCl, and...
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A A process called selective precipitation allows for one ion to be removed from a solution containing other ions, with only the ion of interest being precipitated out of solution. This process is used in the purification of drinking water. The process occurs by selecting an ion and then carefully controlling its concentration in the solution. A solution contains 0.010 mol/L silver ions, Ag+ (aq), and 0.010 mol/L strontium ions, Sr²+ (aq). a. Which ion will precipitate out first when a dilute solution of potassium chromate, K₂CrO₂(aq), is added to the mixture? (Hint: Use Ksp values for the two solids that form to determine the concentrations of chromate ion, CrO₂ (aq), needed for each solid to form.) b. What percentage of the ion that precipitates first will remain unprecipitated when the second ion starts to precipitate?
Transcribed Image Text:A A process called selective precipitation allows for one ion to be removed from a solution containing other ions, with only the ion of interest being precipitated out of solution. This process is used in the purification of drinking water. The process occurs by selecting an ion and then carefully controlling its concentration in the solution. A solution contains 0.010 mol/L silver ions, Ag+ (aq), and 0.010 mol/L strontium ions, Sr²+ (aq). a. Which ion will precipitate out first when a dilute solution of potassium chromate, K₂CrO₂(aq), is added to the mixture? (Hint: Use Ksp values for the two solids that form to determine the concentrations of chromate ion, CrO₂ (aq), needed for each solid to form.) b. What percentage of the ion that precipitates first will remain unprecipitated when the second ion starts to precipitate?
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