A sample contains MgCl2 (95.211 g/mol) and KCl (74.551 g/mol). A 6.6933-g sample was dissolved in enough H2O to make 250.0-mL solution. A 50.00-mL aliquot was treated with AgNO3 to precipitate the chlorides and after proper collection and drying gave a precipitate weighing 1.9620-g. Another 50.00-mL aliquot was tested for its Mg2+ content by precipitating it with NH4+ and PO43- giving an Mg2P2O7 (222.551 g/mol) precipitate weighing 0.5186 g with FW AgCl 143.32 g/mol. What is percent KCl in the sampl
A sample contains MgCl2 (95.211 g/mol) and KCl (74.551 g/mol). A 6.6933-g sample was dissolved in enough H2O to make 250.0-mL solution. A 50.00-mL aliquot was treated with AgNO3 to precipitate the chlorides and after proper collection and drying gave a precipitate weighing 1.9620-g. Another 50.00-mL aliquot was tested for its Mg2+ content by precipitating it with NH4+ and PO43- giving an Mg2P2O7 (222.551 g/mol) precipitate weighing 0.5186 g with FW AgCl 143.32 g/mol. What is percent KCl in the sampl
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
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section: Chapter Questions
Problem 84GQ: A sample of hard water contains about 2.0 103 M Ca2+. A soluble fluoride-containing salt such as...
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A sample contains MgCl2 (95.211 g/mol) and KCl (74.551 g/mol). A 6.6933-g sample was dissolved in enough H2O to make 250.0-mL solution. A 50.00-mL aliquot was treated with AgNO3 to precipitate the chlorides and after proper collection and drying gave a precipitate weighing 1.9620-g. Another 50.00-mL aliquot was tested for its Mg2+ content by precipitating it with NH4+ and PO43- giving an Mg2P2O7 (222.551 g/mol) precipitate weighing 0.5186 g with FW AgCl 143.32 g/mol. What is percent KCl in the sample?
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