A solution with a volume of 500.0 mL contained a mixture of SO3 2- and S2O3 2-. A 100.0 mL portion of the solution was found to react with 80.00 mL of 0.0500 M 2CrO4 2- in a basic solution to give CrO2 -. The only sulfur-containing product was SO4 2-. After the reaction, the solution was treated with excess 0.200 M BaCl2 solution, which precipitated BaSO4. This solid was filtered from the solution, dried, and found to weigh 0.9336 g. A. Write down the reaction that occur B. Explain in detail how you can determine the molar concentrations of SO3 2- and S2O3 2- in the original solution.

A solution with a volume of 500.0 mL contained a mixture of SO3 2- and S2O3 2-. A 100.0 mL portion of the solution was found to react with 80.00 mL of 0.0500 M 2CrO4 2- in a basic solution to give CrO2 -. The only sulfur-containing product was SO4 2-. After the reaction, the solution was treated with excess 0.200 M BaCl2 solution, which precipitated BaSO4. This solid was filtered from the solution, dried, and found to weigh 0.9336 g. A. Write down the reaction that occur B. Explain in detail how you can determine the molar concentrations of SO3 2- and S2O3 2- in the original solution.

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter18: Representative Metals, Metalloids, And Nonmetals

Section: Chapter Questions

Problem 115E: A mixture of xenon and ?uorine was heated. A sample of the white solid that formed reacted with...

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