Lecture 1 1/19/05

CHE132: General Chemistry IIDr. Jimmy Hauri

Office: 253 Testa Science Building

Email: jhauri@assumption.edu

Office phone: x 7359

Office hours: MWThF 9:30-12

Chemistry and Chemical Reactivity (5th ed.) by Kotz and Trechel

Grading:Weekly Quizzes (8 x 10 points/each) 80

Midterms (3 x 135 points/each) 405Final (cumulative) 150Laboratory 250Paper 90Class Participation 25Total 1000

Quizzes: A short quiz will be given every Friday. No make-ups, but the lowest scores will be dropped, so that

only 10 quizzes count toward final grade.

Class participation: Easy to get full credit, just attend class and be involved with class discussion

Calculator policy: Students may only use non-programmable calculators during exams. Calculators that can store more than a single line of text in memory are prohibited.

Attendance: Will not be taken, but important to learn anything.

Academic Dishonesty: Don’t cheat!! See A. C. Student Academic Handbook for consequences.

Paper: 5-page paper on a chemistry topic.

Extra credit: 2 – 5 points per seminar. Turn in a ~1-page summary within a week of an approved seminar for credit. Quality of summary determines points.

Exam schedule

Exam 1 – Wednesday, February 16, 2005

Exam 2 – Wednesday, March 23, 2005

Exam 3 – Monday, April 18, 2005

Quiz 1

Find a science article in the NEWSPAPER 4 papers free on Campus (Science Tuesday)

Critique article

Turn in during office hours before end of office hours Wednesday January 26th

A + B ↔ AB

Rate based on:ConstantConcentration

]AB[kdt

]AB[d]B][A[k

dt

]A[drf

At Equilibrium:Rates (forward and reverse) are equalConcentrations stop changing

Reactions are still going ‘dynamic equilibrium’

Equilibrium not the same thing as kinetics

Rates are equal

K [A][B]

[AB]

k

k

[AB]k[A][B]kdt

d[AB]

dt

d[A]

r

f

rf

constant mequilibriu

Law of Mass Action

bB

aA

dD

cC

p

ba

dc

c

PP

PP K :pressure

]B[]A[

]D[]C[K :ionconcentrat

dD cC bB aA