W Apr 13
Today in Chem 104:
- Lecture: Structure and AcidIn Arrhenius theory, a substance that produces hydrogen ions (hydronium ions) in aqueous solution. In Bronsted-Lowry theory, a hydrogen-ion (proton) donor. In Lewis theory, a species that accepts a pair of electrons to form a covalent bond.-BaseIn Arrhenius theory, a substance that increases the concentration of hydroxide ions in an aqueous solution. In Bronsted-Lowry theory, a hydrogen-ion (proton) acceptor. In Lewis theory, a species that donates a pair of electrons to form a covalent bond. Strength; Buffers
- Reading:
Kotz: Ch. 17, Sec. 8, 10
Moore: Ch. 16, Sec.6; Ch. 17, Sec. 1,3 - Homework #10 due by 11:55 PM F Apr 15
- Quiz in second discussion section this week
- Lab this week is #6, Acid and Base Solutions
♦ Additional ungraded questions for this reading can be found in the ChemPaths: Extra Problems Reactions in Aqueous Solutions and Ionic Equilibria in Aqueous Solutions.
Today's reading on ChemPaths contains the following sections:
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Add to Diigo!Term of the Day
The equilibrium constant expressionThe ratio of the concentrations of products in a balanced chemical equation, each concentration raised to the power of its coefficient, divided by the concentrations of reactants, each raised to the power of its coefficient; at equilibrium this ratio has the value of the equilibrium constant. for the dissolution of an electrolyteA substance that dissolves to produce a solution containing ions, which cause the solution to conduct electricity.; the reactantA substance consumed by a chemical reaction. is a solidA state of matter having a specific shape and volume and in which the particles do not readily change their relative positions. and its concentrationA measure of the ratio of the quantity of a substance to the quantity of solvent, solution, or ore. Also, the process of making something more concentrated. does not appear in the expression, which is a productA substance produced by a chemical reaction. of the concentrations of the products (raised the to appropriate powers).
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