1. Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A-, B-, and C- ions, all of which are colorless. When a solution of A is mixed with one containing C- ions, the color changes from red to green. (a) What species is oxidized? (b) Which is reduced?
When a solution of A is mixed with one containing B- ions, the color remains green. (a) Is A a better oxidizing agent than B? (b) Is A a better oxidizing agent than C?
Arrange A, B, and C in order of increasing strengths as oxidizing agents.
2. You are given an unknown, colorless, solution that may contain only one salt from the following set: NaA, NaB, NaC. In solution each salt dissociates completely into the Na+ ion and the anion A-, B-, or C-, whose properties are given in Problem 1. The Na+ ion is effectively inert. Given the availability of solutions of A, B, and C, develop a simple procedure for identifying the
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