Ch.4 - Chemical Quantities & Aqueous ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

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

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.