W May 4
Today in Chem 104:
- Lecture: Electrochemistry; ElectrolysisA process in which a reaction that would otherwise be non-spontaneous (reactant-favored) is forced to occur by passage of electric current., CorrosionChemical or electrochemical oxidation of the surface of a metal or alloy; corrosion can cause structural damage, as in the case of rusting.
- Reading:
Kotz: Ch. 20, Sec. 7-8
Moore: Ch. 19, Sec. 11-13 - Homework #12 due by 11:55 PM F May 6
- No quiz this week
- Lab this week is #8, Redox TitrationThe gradual addition of one solution to another until the chemical amount of one reactant being added matches stoichiometrically the amount of another reactant in the solution initially present.
♦ Additional ungraded questions for this reading can be found in the ChemPaths: Extra Problems Reactions in Aqueous Solutions and Electrochemical Cells
Today's reading on ChemPaths contains the following sections:
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Add to Diigo!Term of the Day
An estimate of the size of an ionAn atom or covalently bonded set of atoms that carries an overall net charge. in an ionic compoundA compound containing oppositely charged ions held together by electrostatic attraction. Usually the ions are in a crystal lattice with positive ions surrounded by negative ions and negative ions surrounded by positive ions.; found from the internuclear distanceThe distance between the nuclei of nearest-neighbor atoms or ions in an element or compound. Bond distances and ionic radii are calculated from this quantity because atoms have no discrete edges. between ions in a crystal latticeAn orderly, repeating arrangement of points in 3-D space in which each p;oint has surroundings identical to every other point. A crystal's constituent atoms, molecules, and ions are arranged about each lattice point..
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