A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A 0.50 g sample which was dissolved in 50 mL of water and treated with 0.500 mL of 0.0010 M sodium chromate, required 10 mL of 0.50 M AgNO3 for complete titration. AgCl FW=143.32 g/mol , AgBr FW=187.77 g/mol what is suitable indicator? a. Na2CrO4 b. AgNO3 c. phenolphthalein d. any of these can be used expected endpoint? a. pink precipitate b. red solution c. red precipitate d. any of these is possible what is %w/w KCl and %w/w NaBr?
A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A 0.50 g sample which was dissolved in 50 mL of water and treated with 0.500 mL of 0.0010 M sodium chromate, required 10 mL of 0.50 M AgNO3 for complete titration. AgCl FW=143.32 g/mol , AgBr FW=187.77 g/mol what is suitable indicator? a. Na2CrO4 b. AgNO3 c. phenolphthalein d. any of these can be used expected endpoint? a. pink precipitate b. red solution c. red precipitate d. any of these is possible what is %w/w KCl and %w/w NaBr?
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.102QE
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A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A 0.50 g sample which was dissolved in 50 mL of water and treated with 0.500 mL of 0.0010 M sodium chromate, required 10 mL of 0.50 M AgNO3 for complete titration. AgCl FW=143.32 g/mol , AgBr FW=187.77 g/mol
what is suitable indicator?
a. Na2CrO4
b. AgNO3
c. phenolphthalein
d. any of these can be used
expected endpoint?
a. pink precipitate
b. red solution
c. red precipitate
d. any of these is possible
what is %w/w KCl and %w/w NaBr?
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