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.
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
Section: Chapter Questions
Problem 40P
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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.
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