Chemistry Practice Problems Calculate Oxidation Number Practice Problems Solution: The compound KI3 is formed when potassium iodide i...

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Solution: The compound KI3 is formed when potassium iodide is mixed with elemental iodine (I2). It contains the polyatomic triiodide ion (I3–). There is something strange about the oxidation state of iodine in KI3. Use what you’ve learned to:a. Calculate the oxidation state on iodine, and explain how it is strange.b. Do you think the value you got is plausible for the OS of iodine in this substance? Explain.

Problem

The compound KI3 is formed when potassium iodide is mixed with elemental iodine (I2). It contains the polyatomic triiodide ion (I3). There is something strange about the oxidation state of iodine in KI3. Use what you’ve learned to:

a. Calculate the oxidation state on iodine, and explain how it is strange.
b. Do you think the value you got is plausible for the OS of iodine in this substance? Explain.

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