8/12/2019 Cn Fall12 CH1
1/46
General Chemistry
Fall 2012
8/12/2019 Cn Fall12 CH1
2/46
Chemistry: The Central Science
8/12/2019 Cn Fall12 CH1
3/46
General Chemistry Syllabus
A study of Matter - Atomic and Electronic structure Chemical bonding Chemical reactions
Chemical energy Kinetics and Equilibrium
Meetings (5 credit hours) Check your my courses tab
8/12/2019 Cn Fall12 CH1
4/46
Dr. Dan DeLaCruz Contact Information
Email [email protected] Office in RH 201 Office hours Mon. Tue. Fri. - 12:00 pm - 1:00 pm Office Phone 573-651-2162
8/12/2019 Cn Fall12 CH1
5/46
General Chemistry
Website learning.semo.edu
Class Textbook Chemistry Atoms First 2012
by Burdge and Overby Cheating
Any student caught cheating (as defined in the studenthandbook) will be given an F for the class
8/12/2019 Cn Fall12 CH1
6/46
General Chemistry Grade Scale
4 hour exams (100 pts each) 400 ptsFinal exam 200 ptsLaboratory 200 ptsHomework 100 ptsQuizzes 100 ptsTotal number of points possible: 1000 pts
Final grades will be assigned as follows: 90.0 100.0% A 80.0 89.9% B 70.0 79.9 % C 60.0 69.9 % D
0
59.9 % F
A laboratory grade of at least 50% is required for a grade of C or greater.
8/12/2019 Cn Fall12 CH1
7/46
8/12/2019 Cn Fall12 CH1
8/46
General Chemistry Laboratory
Purpose of lab is to reinforce concepts learned inlecture with hands on experimentation
Print out handouts from CH185 website beforecoming to class
Attend lab for which you are registered Need goggles, proper clothing and shoes
8/12/2019 Cn Fall12 CH1
9/46
General Chemistry Weekly Tasks
Homework covering the weeks chapter due by 8:00AM on Wednesday .
Quiz covering the weeks chapter will held every Friday of each week.
NO HOMEWORK OR QUIZZES THIS FIRST WEEK For your online homework http://saplinglearning.com During
sign up, and throughout the term, if you have any technicalproblems or grading issues, send an email [email protected]
Each student will be allowed TWO quiz drops . Any missedquizzes will count towards a drop. Any missed quizzes afterthat are worth 0
Any missed homework assignments CAN NOTbe made up
http://saplinglearning.com/http://saplinglearning.com/8/12/2019 Cn Fall12 CH1
10/46
General Chemistry Recitation
Purpose of recitation is to review material covered inlecture
Will focus on problems similar to exam problems Group work to complete a worksheet Exams will be held in recitation
8/12/2019 Cn Fall12 CH1
11/46
8/12/2019 Cn Fall12 CH1
12/46
Success in General Chemistry
8/12/2019 Cn Fall12 CH1
13/46
8/12/2019 Cn Fall12 CH1
14/46
Unit 1 - Matter
Atomic and Electronic Structure
8/12/2019 Cn Fall12 CH1
15/46
Definition of Chemistry:
A simple definition of chemistry is: the study of matter and the changes itundergoes.
8/12/2019 Cn Fall12 CH1
16/46
Physical States of Matter
8/12/2019 Cn Fall12 CH1
17/46
Pure Substances and Mixtures
8/12/2019 Cn Fall12 CH1
18/46
Separation of Mixtures
8/12/2019 Cn Fall12 CH1
19/46
Physical and Chemical Properties of Matter
http://my-blackberry.net/wallpapers/11/m/Melting_Ice_Cube.jpg8/12/2019 Cn Fall12 CH1
20/46
DOT Placards
8/12/2019 Cn Fall12 CH1
21/46
Measurement of Matter
Measurement definitions are different betweencountries and in time
Length 1 foot = Length of King Henry I foot in ~1100 AD
1 inch = 1/12 of 1 foot or length of three kernels of barley
8/12/2019 Cn Fall12 CH1
22/46
International System of Units (SI)
1 meter = Length of the path travelled by light in a vacuum in 1/299792458 of a second1 second = the duration of 9,192,631,770 periods of the radiation corresponding to the transitionbetween the two hyperfine levels of the ground state of the caesium 133 atom1 kelvin = the fraction 1/273.16 of the thermodynamic temperature of the triple point of water1 mol = the amount of substance of a system which contains as manyelementary entities as there are atoms in 0.012 kilogram of carbon 12
8/12/2019 Cn Fall12 CH1
23/46
Measurement units commonlyused in Chemistry
Quantity Name of unit Symbol
length meter m
mass gram g
time second S
temperature Celsius C
amount mole mol
volume milliliter mL
density gram/milliliter g/mL
Memorize this list
8/12/2019 Cn Fall12 CH1
24/46
Prefixes in Metric System
Memorize this list and meanings
Prefix symbol
Tera- T
Giga- G
Mega- M
Kilo- k
Deci- d
centi- c
milli- m
micro- mnano- n
pico p
8/12/2019 Cn Fall12 CH1
25/46
Dimensional Analysis
Dimensional analysis uses ____________ _________to change one unit into another.1000 mm = 1 m1 kg = 1000 g10 6 mL = 1 L
How many mm are in 34.2 m?
8/12/2019 Cn Fall12 CH1
26/46
Dimensional Analysis
How many yards are in 34.2 m?
1.0936 yd = 1 m3 ft = 1 yd
12 in = 1 ft2.54 cm = 1 in100 cm = 1 m
8/12/2019 Cn Fall12 CH1
27/46
Dimensional Analysis
How many seconds are in 2.44 yr?
365 days = 1 yr24 hr = 1 day60 min = 1 hr60 s = 1 min
8/12/2019 Cn Fall12 CH1
28/46
The average speed of a nitrogen molecule in air at 25Cis 515 m/s. Convert this speed to miles per hour.(Given 1 mile = 1.6093 km)
8/12/2019 Cn Fall12 CH1
29/46
Temperature Conversions:
K = C + 273.15F = 9/5( C) + 32C = 5/9( F 32)
8/12/2019 Cn Fall12 CH1
30/46
If a weather forecaster predicts that the temperature forthe day will reach 31C, what is the predicted
temperature (a) in K, (b) in F?
8/12/2019 Cn Fall12 CH1
31/46
Volume
Definition:
A _________ is a cube 1dm long on each side.
A __________ is a cube 1
cm long on each side. 1000 mL = 1 L
8/12/2019 Cn Fall12 CH1
32/46
Dimensional Analysis
How many mL are in 30.1 L?
1000 mL = 1 L
8/12/2019 Cn Fall12 CH1
33/46
Dimensional Analysis
How many L are in 5.0 gal?
3.7854 L = 1 gal
8/12/2019 Cn Fall12 CH1
34/46
Dimensional Analysis
How many cm 3 are in 0.43 L?
1000 mL = 1 L1 cm 3 = 1 mL
8/12/2019 Cn Fall12 CH1
35/46
Density:
Physical property of a substance
density can change with _________________
md
V
8/12/2019 Cn Fall12 CH1
36/46
(a) Calculate the density of mercury if 1.00 10 2 goccupies a volume of 7.36 cm 3.
(b) Calculate the volume of 65.0 g of the liquidmethanol (wood alcohol) if its density is 0.791 g/mL.
8/12/2019 Cn Fall12 CH1
37/46
Measurement uncertainty and exact numbers
Defined values
Counting
8/12/2019 Cn Fall12 CH1
38/46
8/12/2019 Cn Fall12 CH1
39/46
Scientific Notation and Calculators
Convert 3.4 x 10 5 ms to s.
8/12/2019 Cn Fall12 CH1
40/46
8/12/2019 Cn Fall12 CH1
41/46
Significant Figures
1. 534
2. 504
3. 0.023
8/12/2019 Cn Fall12 CH1
42/46
Significant Figures
4. 74.300
5. 230,000
8/12/2019 Cn Fall12 CH1
43/46
How many significant figures are in each of thefollowing measurements: (a) 3.549 mol, (b) 203 10 4 cm, (c) 0.00134 m 3, (d) 92.10 oC, (e) 6530 kg?
8/12/2019 Cn Fall12 CH1
44/46
Significant Figures in Calculations
Multiplication or division
Area = (6.221 cm)(5.2 cm) =
1m6.221cm
100cm
8/12/2019 Cn Fall12 CH1
45/46
C h f ll i i d h
8/12/2019 Cn Fall12 CH1
46/46
Carry out the following operations and express theanswer with the appropriate number of significant
figuresa. 15.3 cm x 6.1 cm x 8.112 cm =
b. 674.1 g 501 g =
c. (0.0045 x 20000.0) + (2813 x 12)
Top Related