Solution Found!
Solved: Sulfites (compounds containing the SO3 22 ions)
Chapter 4, Problem 4.139(choose chapter or problem)
Sulfites (compounds containing the SO3 22 ions) are used as preservatives in dried fruit and vegetables and in wine making. In an experiment to test the presence of sulfite in fruit, a student first soaked several dried apricots in water overnight and then filtered the solution to remove all solid particles. She then treated the solution with hydrogen peroxide (H2O2) to oxidize the sulfite ions to sulfate ions. Finally, the sulfate ions were precipitated by treating the solution with a few drops of a barium chloride (BaCl2) solution. Write a balanced equation for each of the preceding steps.
Questions & Answers
QUESTION:
Sulfites (compounds containing the SO3 22 ions) are used as preservatives in dried fruit and vegetables and in wine making. In an experiment to test the presence of sulfite in fruit, a student first soaked several dried apricots in water overnight and then filtered the solution to remove all solid particles. She then treated the solution with hydrogen peroxide (H2O2) to oxidize the sulfite ions to sulfate ions. Finally, the sulfate ions were precipitated by treating the solution with a few drops of a barium chloride (BaCl2) solution. Write a balanced equation for each of the preceding steps.
ANSWER:Step 1 of 2
The reaction between sulfites and hydrogen peroxide to form sulfate ions is as follows;
In this, the sulfite ions get oxidized by hydrogen peroxide to form sulfate ions.