Chem 115: Accelerated Chemistry

Lecture Notes, Memos, and Assignments
CHEM 115
Chemistry 115: Accelerated Chemistry

THIS COURSE IS NO LONGER OFFERED

Lewis and Clark College
Chemistry Department

Lecture Notes and Memos

SEPT. 5

1. Review of Atoms, Molecules & Ions. Chp 2

SEPT. 7 2. Molecular Composition and Mole Concept

SEPT. 10

3. STOICHIOMETRY and ELEMENTAL ANALYSIS

SEPT. 12

4. Aqueous Solution; Strong & Weak Electrolytes. CONCENTRATION. Precipitation Reaction

SEPT. 14

5. BALANCING OXIDATION REDUCTION REACTIONS. The Gas Laws; Boyle's Law, Charle's Law, Avogardro's Law

SEPT. 17

6. Chap 5. Application of Ideal Gaw Law; lifting a balloon and gas density. Definition of Pressure

SEPT. 19

7. Chap 5.6-Kinetic Molecular Theory (KMT). Deriving PV=nRT from gas particle in a cube.

SEPT. 24

8. Using KMT to get ROOT MEAN SQUARE VELOCITY. Average & most probably velocity. Effusion & Diffusion (5.7). Collisions with wall (5.8) and with other molecules (5.9)

SEPT. 26

9. Application of gas velocities (KMT) in extraterrestial chemistry and in plant biochemistry.

SEPT. 28

10. Definition of Chemical Equilibrium (Chp 6). Chemical Equilibrium for gases. Acid Dissociation Constants for small dissociation-no need for quadratic equations.

OCT. 1

11. Solving Equilibrium Constant Problems. Working with "half neutralization point" calculation. Conference problem with solving dissociation with large dissociation-using quadratic equations.

OCT . 3

12. Le Chatelier's Principle-Conference problem. Effect of temperature and pressure on gas phase equilibrium

OCT. 5

FIRST EXAM

OCT. 8

Acids & Bases (Chpt 7). Strong and weak electrolytes. Relationship between Ka, Kb, and Kw. Calculating pH for strong and weak acids.

OCT. 10

pH for strong and weak bases. Polyprotic acids

OCT. 15

Acid-base Properties of Salts-Skip 7.9. Common Ion Effect (Begin Chpt. 8)

OCT. 17

Buffers. Calculating acid/salt ratio for buffers. Titration-Four basic regions: (i)Before adding titrant, (ii) between half neutralization point and beginning, (iii) at half neutralization point, (iv) end point

OCT. 19

Titration continued: beyond end point. Equilibrium definition for heterogeneous equilibria-Solubility product. Using common ion effect and solubility product to predict dissolved ion concentration.

OCT. 22

Review Titration. Revisit Common Ion Effect in terms of ion product in terms of Ion Product. Selective Precipitation

OCT. 24

Energy of Reactions (Chp. 9). System vs. Surrounding. Defn of PV work.

OCT. 26

Hess's Law

OCT. 29

Enthalpy of Reactions for Heat Transfer. Enthalpy of Rxns using Hess's Law & Enthalpy of Rxns for Enthalpy of Formations. Standard State(s) for Enthalpy of Formations.

OCT. 31

Using Enthalpy of Rxns to Examine Hydrogen Economy. Spontaneity (Chp. 10). Entropy=Disorder. Entropy in terms of number of arrangements(microstates), in terms of the number of products vs reactants, and in terms of volume and temperature change.

NOV. 2

Entropy in terms of phase changes. Second Law of Thermodynamics. Key=entropy of surrounding is unknown. Gibbs Free Energy takes into account of the surrounding entropy

NOV. 5

Entropy of system for reversible vs irreversible processes. Gibbs Free Energy for spontaneous, non-spontaneous and equilibrium processes. Using the Second Law of Thermodynamics to look at efficiency

NOV. 7

Free Energy of a Reaction

NOV. 9

Exam #2

NOV. 12

Free Energy of Reaction under standard and non-standard conditions; pressure modification. Relating Equilibrium processes/constant with Free Energy. Temperature Dependence on Equilibrium Constant. Van't Hoff Eqn.

NOV. 14

Solving for Free Energy & Keq under non-standard conditions.

NOV. 16

Electrochemistry (Chp 11). Fuel Cell and Oxidation Potential. Relating Voltage to work

NOV. 19

Relating Voltage to Free Energy. Nernst Eqn. Electroplating Applications.

NOV. 21

Quantum Chemistry (Chp 12). The nature of light.

NOV. 23

Thanksgiving Break.

NOV. 26

Describing Electrons as Waves. Particle in a Box

NOV. 28

Atomic Theory-Orbitals

Date

Assignments

Due Sept. 14 (Fri)

Assignment #1 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW1.html

Due Sept. 24 (Mon)

Assignment #2 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW2.html

Due Oct. 1 (Mon)

Assignment #3 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW3.html

Due Oct 10 (Wed.)

Assignment #4 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW4.html

Due Oct 19 (Fri)

Assignment #5 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW5.html

	Lecture Notes and Memos

SEPT. 5	1. Review of Atoms, Molecules & Ions. Chp 2
SEPT. 7 2. Molecular Composition and Mole Concept
SEPT. 10	3. STOICHIOMETRY and ELEMENTAL ANALYSIS
SEPT. 12	4. Aqueous Solution; Strong & Weak Electrolytes. CONCENTRATION. Precipitation Reaction
SEPT. 14	5. BALANCING OXIDATION REDUCTION REACTIONS. The Gas Laws; Boyle's Law, Charle's Law, Avogardro's Law
SEPT. 17	6. Chap 5. Application of Ideal Gaw Law; lifting a balloon and gas density. Definition of Pressure
SEPT. 19	7. Chap 5.6-Kinetic Molecular Theory (KMT). Deriving PV=nRT from gas particle in a cube.
SEPT. 24	8. Using KMT to get ROOT MEAN SQUARE VELOCITY. Average & most probably velocity. Effusion & Diffusion (5.7). Collisions with wall (5.8) and with other molecules (5.9)
SEPT. 26	9. Application of gas velocities (KMT) in extraterrestial chemistry and in plant biochemistry.
SEPT. 28	10. Definition of Chemical Equilibrium (Chp 6). Chemical Equilibrium for gases. Acid Dissociation Constants for small dissociation-no need for quadratic equations.
OCT. 1	11. Solving Equilibrium Constant Problems. Working with "half neutralization point" calculation. Conference problem with solving dissociation with large dissociation-using quadratic equations.
OCT . 3	12. Le Chatelier's Principle-Conference problem. Effect of temperature and pressure on gas phase equilibrium
OCT. 5	FIRST EXAM
OCT. 8	Acids & Bases (Chpt 7). Strong and weak electrolytes. Relationship between Ka, Kb, and Kw. Calculating pH for strong and weak acids.
OCT. 10	pH for strong and weak bases. Polyprotic acids
OCT. 15	Acid-base Properties of Salts-Skip 7.9. Common Ion Effect (Begin Chpt. 8)
OCT. 17	Buffers. Calculating acid/salt ratio for buffers. Titration-Four basic regions: (i)Before adding titrant, (ii) between half neutralization point and beginning, (iii) at half neutralization point, (iv) end point
OCT. 19	Titration continued: beyond end point. Equilibrium definition for heterogeneous equilibria-Solubility product. Using common ion effect and solubility product to predict dissolved ion concentration.
OCT. 22	Review Titration. Revisit Common Ion Effect in terms of ion product in terms of Ion Product. Selective Precipitation
OCT. 24	Energy of Reactions (Chp. 9). System vs. Surrounding. Defn of PV work.
OCT. 26	Hess's Law
OCT. 29	Enthalpy of Reactions for Heat Transfer. Enthalpy of Rxns using Hess's Law & Enthalpy of Rxns for Enthalpy of Formations. Standard State(s) for Enthalpy of Formations.
OCT. 31	Using Enthalpy of Rxns to Examine Hydrogen Economy. Spontaneity (Chp. 10). Entropy=Disorder. Entropy in terms of number of arrangements(microstates), in terms of the number of products vs reactants, and in terms of volume and temperature change.
NOV. 2	Entropy in terms of phase changes. Second Law of Thermodynamics. Key=entropy of surrounding is unknown. Gibbs Free Energy takes into account of the surrounding entropy
NOV. 5	Entropy of system for reversible vs irreversible processes. Gibbs Free Energy for spontaneous, non-spontaneous and equilibrium processes. Using the Second Law of Thermodynamics to look at efficiency
NOV. 7	Free Energy of a Reaction
NOV. 9	Exam #2
NOV. 12	Free Energy of Reaction under standard and non-standard conditions; pressure modification. Relating Equilibrium processes/constant with Free Energy. Temperature Dependence on Equilibrium Constant. Van't Hoff Eqn.
NOV. 14	Solving for Free Energy & Keq under non-standard conditions.
NOV. 16	Electrochemistry (Chp 11). Fuel Cell and Oxidation Potential. Relating Voltage to work
NOV. 19	Relating Voltage to Free Energy. Nernst Eqn. Electroplating Applications.
NOV. 21	Quantum Chemistry (Chp 12). The nature of light.
NOV. 23	Thanksgiving Break.
NOV. 26	Describing Electrons as Waves. Particle in a Box
NOV. 28	Atomic Theory-Orbitals

Date	Assignments

Due Sept. 14 (Fri)	Assignment #1 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW1.html
Due Sept. 24 (Mon)	Assignment #2 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW2.html
Due Oct. 1 (Mon)	Assignment #3 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW3.html
Due Oct 10 (Wed.)	Assignment #4 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW4.html
Due Oct 19 (Fri)	Assignment #5 ftp://kuo:@sun.lclark.edu//home/f/kuo/cwis/Chem115HW5.html