The Final… Where to Start?Pauli exclusion principle No two electrons in one atom can have the same four quantum numbers Aufbau principle Building up Hund’s rule Every orbital gets

CHEM 1305 – © Dr. Houston Brown - 2016

The Final…Where to Start?


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…


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


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


Scientific method

Chapter 1


Matter

Elements

Compounds

Chapter 2


Measurements

Inter-conversions

Significant Figures

DIMENSIONAL ANALYSIS

Chapter 3


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


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


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!


The farmer owns the pet store…

By the way…


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…


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?


Spectator ions

3 types of reactions

acids, bases

Arrhenius

Bronsted-Lowry

Lewis

Strong and weak acids and bases

Polyprotic acids

And…


(P1V1/T1) = (P2V2/T2)

PV = nRT

Dalton’s law of partial pressure

Mole fraction

Effusion

Diffusion

Chemistry – It’s a GAS!


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…


Protons

Neutrons

Electrons

Atomic Number (and the periodic table)

Isotopes

What does mean?

Atomic mass?

Atomic Theory (are you positive?)


Copper (II) Chloride

Na2O

What’s YOUR name?


ReactionsSingle isplacement D

ouble isplacement D D

Net Ionic Equations

(g),(s),(l),(aq.)

Well, weren’t you quick to react?


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…


Chemical Bonds (not James)…

BondsIonic

Covalent

Dipoles

Multiple bonds

Go Lewis!

Molecular Shapes!

Shaken, not stirred…


M

m

%

N

M1V1 = M2V2

Solutions…


(See slide 12… You can’t have forgotten that quickly…)

Acids and Bases


Anti-log?

14?

Kw = ?

pOH + pH = ??

pH, pOH


Le Chatlier

K

aA + bB cC + dD

Chemical Equilibrium


Functional Groups

Longest chain to name

Isomers

Organic Chemistry


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


It’s been fun…

Documents

The Final… Where to Start?Pauli exclusion principle No two electrons in one atom can have the same four quantum numbers Aufbau principle Building up Hund’s rule Every orbital gets