CHEM 1305 – © Dr. Houston Brown - 2016 The Final… Where to Start?
CHEM 1305 – © Dr. Houston Brown - 2016
The Final…Where to Start?
CHEM 1305 – © Dr. Houston Brown - 2016
Make SURE to bring a Scantron…AVAILABLE FOR FREE AT STUDENT ASSOCIATION, 2ND FLOOR…
You no longer need to do this, butis this not useful information? Free?Who knew…
CHEM 1305 – © Dr. Houston Brown - 2016
Look at the concepts, what you needed to know.
Look at selected problems which you have done. This will jog back a lot of memories.
Find what you still don’t understand. Seek help immediately.
Review the assignments on OWL
CHEM 1305 – © Dr. Houston Brown - 2016
Some of the problems, in the interest of “green tests”, will be recycled. HINT
This includes the LAB quizzes. Learn what you don’t know.
Look at the problems. Be sure that you can work them.
Create your “cheat sheets”. Be familiar with them. I don’t want you to memorize them. I want you to be able to use them.
Review the Tests
CHEM 1305 – © Dr. Houston Brown - 2016
Scientific method
Chapter 1
CHEM 1305 – © Dr. Houston Brown - 2016
Matter
Elements
Compounds
Chapter 2
CHEM 1305 – © Dr. Houston Brown - 2016
Measurements
Inter-conversions
Significant Figures
DIMENSIONAL ANALYSIS
Chapter 3
CHEM 1305 – © Dr. Houston Brown - 2016
Always multiply by “1” to change units
ALWAYS use consistent units! (For instance, feet and cm are length units, but feet don't cancel out cm!!)
ALWAYS write the units down AVOIDING superfluous units (made up units that don't belong)!!
ALWAYS be sure that the units cancel out by having one in the denominator and the other in the numerator or vice versa.
ALWAYS be sure the units of the final answer match the units you are seeking.
Factor Label – Dimensional Analysis
CHEM 1305 – © Dr. Houston Brown - 2016
1. A car is traveling 65 miles per hour. How many feet does the car travel in one second?
2. The density of water is one gram per cubic centimeter. What is the density of water in pounds per liter?
3. How many basketballs can be carried by 8 buses?
· 1 bus = 12 cars
· 3 cars = 1 truck
· 1000 basketballs = 1 truck
Factor Label
CHEM 1305 – © Dr. Houston Brown - 2016
A farmer who has four cows ready to go to market. He trades the cow for chicken at the rate of 20 chickens per cow. He trades the chickens for pig at a rate of 15 chickens per 2 pig. On average, each pig weighs 140 lb. The pig he trades for corn, 3 bushels of corn per pound of pig. The corn is then traded for wheat at 1 bushel of wheat per 2 bushels of corn. Wheat is premium, so he trades it for rye, 5 bushels of rye per bushel of wheat. He gives the rye to a baker, who makes 500 loaves of bread for each bushel. The loaves of bread are given to a pet store who can feed 3 birds per loaf of bread. The birds are used to feed snakes, and each snake eats an average of 9 birds before being sold for $32.00 each. How much money did the pet store make from the four cows?
Solve This!
CHEM 1305 – © Dr. Houston Brown - 2016
The farmer owns the pet store…
By the way…
CHEM 1305 – © Dr. Houston Brown - 2016
MolesAvogadro’s Number
Moles, molecules, grams, empirical formulasStoichiometry, Limiting Reactant (Reagent), % yield.
Electrolytes, solubility
Molecular, ionic, net ionic equations
Let’s start forgetting the chapter numbers…
CHEM 1305 – © Dr. Houston Brown - 2016
NaC3H5O2
CaCl2
2 C6H6 + 15 O2 12 CO2 + 6 H2O
Think on a molecular level.
Stoichiometry… The math behind chemistry.
What Does the Following Mean?
CHEM 1305 – © Dr. Houston Brown - 2016
Spectator ions
3 types of reactions
acids, bases
Arrhenius
Bronsted-Lowry
Lewis
Strong and weak acids and bases
Polyprotic acids
And…
CHEM 1305 – © Dr. Houston Brown - 2016
(P1V1/T1) = (P2V2/T2)
PV = nRT
Dalton’s law of partial pressure
Mole fraction
Effusion
Diffusion
Chemistry – It’s a GAS!
CHEM 1305 – © Dr. Houston Brown - 2016
Kinetic energy
Potential energy
Law of conservation of energy
Heat of reaction DH
Heat capacity (mC) (Phase change?)
Specific heat capacity (mcDT)
Things are heating up…
CHEM 1305 – © Dr. Houston Brown - 2016
Protons
Neutrons
Electrons
Atomic Number (and the periodic table)
Isotopes
What does mean?
Atomic mass?
Atomic Theory (are you positive?)
CHEM 1305 – © Dr. Houston Brown - 2016
Copper (II) Chloride
Na2O
What’s YOUR name?
CHEM 1305 – © Dr. Houston Brown - 2016
ReactionsSingle isplacement D
ouble isplacement D D
Net Ionic Equations
(g),(s),(l),(aq.)
Well, weren’t you quick to react?
CHEM 1305 – © Dr. Houston Brown - 2016
Quantum numbers and atomic orbitals
Electron configurations
Pauli exclusion principle
No two electrons in one atom can have the same four quantum numbers
Aufbau principleBuilding up
Hund’s ruleEvery orbital gets one electron first
This stuff sends me into orbit…
CHEM 1305 – © Dr. Houston Brown - 2016
Chemical Bonds (not James)…
BondsIonic
Covalent
Dipoles
Multiple bonds
Go Lewis!
Molecular Shapes!
Shaken, not stirred…
CHEM 1305 – © Dr. Houston Brown - 2016
M
m
%
N
M1V1 = M2V2
Solutions…
CHEM 1305 – © Dr. Houston Brown - 2016
(See slide 12… You can’t have forgotten that quickly…)
Acids and Bases
CHEM 1305 – © Dr. Houston Brown - 2016
Anti-log?
14?
Kw = ?
pOH + pH = ??
pH, pOH
CHEM 1305 – © Dr. Houston Brown - 2016
Le Chatlier
K
aA + bB cC + dD
Chemical Equilibrium
CHEM 1305 – © Dr. Houston Brown - 2016
Functional Groups
Longest chain to name
Isomers
Organic Chemistry
CHEM 1305 – © Dr. Houston Brown - 2016
3 Pros and Cons for each type of energy (If you knew how much I hate grading this, you would know how important it is and that it will be on there…)
What is Joe? Know about Joe!!!
Energy
CHEM 1305 – © Dr. Houston Brown - 2016
It’s been fun…