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CHEM. 162 TEST #1 REVIEWPowerPoint Presentation

CHEM. 162 TEST #1 REVIEW

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CHEM. 162TEST #1 REVIEW

DHof-lattice E, fig 8.5, pg. 295

steps formation LiF

set up equations for each step

Calculate & properly place

formal charge on molecular structures

Chemical Bond Types - describe

ionic, covalent, metallic

Lewis -- VSEPR

dot structure

electronic structure

molecular geometry

lone pair

bond angle

Trends

Electronegativity

bond polarity

Bond Length

Bond Strength

Bond Energy

Bond Order

Melting/Boiling Pt

DH calculations

bond energies

# of bonds formed

octet rule

endo - reactant, e- transfer

break bonds, lose e-,

BE>0

exo - pdt, gain e-, form bonds,

ionic solid form, BE<0

dist/speed (de)localized e-

CHEM. 162Ch.13 TEST REVIEW

EQUATIONS

Ch. 13 CONCEPTS

S, Entropy-

Henry’s Law - gas solubility

Raoult’s Law - vp of solns

Solvation Process

Colligative Properties

decr vp, incr bp, decr fp

van’t Hoff Effect

Solubility & Factors to Consider:

intermolecular forces

ion-dipole H-bonding

dipole-dipole dispersion

Basic Principles

DTf/b = Kf/b*m*i

Sgas = KH*POgas

Psoln = (X*P)solvent

Various Concentration

M = mol solute/L soln

m = mol solute/Kg solvent

X = mol solute/ mol soln

soln = solute + solvent

CHEM. 162Ch.14 TEST REVIEW

Ch. 14 CONCEPTS

RXN -

rate, expression, constant, order, law

Integrated, Half-lifes

Arrhenius Eqn, Activation Ea; graph

Factors Influence Rate

Rate -

instantaneous, initial, average; graph

RXN Mechanisms

RDS, rate law, molecularity

Catalyst - effect, nature

Diagrams - draw, label parts

endo/exo, catalyst, multistep

Transition State, Activated Complex

CALCULATIONS

Various Rates

Half-life

Activation Ea

Orders

“Labels”

CHEM. 162Ch.15 TEST REVIEW

EQUILIBRIUM

>Calculate, Kc/Kp

>Calculations based on [ ]/P;

I.C.E. Tables

>Direction

RXN QUOTIENT, Qc

>Calculate Q

>Compare K - Q

Le CHÂTELIER’S PRINCIPLE

> to System

>Direction of Rxn

Reversible Rxn

Interpret Graphs

Interpret Rxn;

of coefficients

PV = nRT

Kp = Kc(RT)ngas

Ch.11 Test Review

Clausius-Claperyron; calculations

Ln P = (-H/R)(1/T)

EQUILIBRA

q = n*CPHASE*DT & q = n*H

gas -------> liq condensation (exo)

(endo) vaporization <-------

liq --------> solid freezing (exo)

(endo; fusion) melting <-------

COOLING CURVE; H calculations

INTERMOLECULAR FORCES

ion-dipole dipole-dipole dispersion hydrogen bonding

bond type; bp/mp higher/lower

hydrogen bonding examples

CHEM. 162FINAL TEST REVIEW

EQUATIONS

CONCEPTS

Freezing/Boiling Pts

pure liquid, solns, van’t Hoff

Concentraton: molarity, molality,

%, ppb, ppm

Vapor Pressure

Rate, Rate Law, Rate Constant,

Rate Order, Activation Energy,

Half-Live

Equilibrium Constant, Expression,

Le Chatelier

DTf/b = Kf/b*m*i

Sgas = KH*POgas

Psoln = (X*P)solvent

Various Concentration

M = mol solute/L soln

m = mol solute/Kg solvent

X = mol solute/ mol soln

soln = solute + solvent

Models – Dot structures, geometry,

atoms/molecules

Use past chapter reviews as guide for FINAL

To better focus on your final, I have narrowed some of the things

you will need to concentrate on. Your test may not incorporate all the

concepts listed, also, the test for Wednesday may be different than Monday.

Equations to Think About

Henry (gas solubility)/Raoult (vapor pressure) Laws

Molarity, molality, mole fraction(mass%)

Arrhenius Eqn

Activation E/Clausius-Clapeyron

Rate constant, rate expression, rxn order, overall order

Rates, instantaneous-change-initial

Integrated rate laws/Half-lives, 0-1st-2nd orders

Equilibrium constant, Equilib expression, Rxn quotient

H enthalpy calculations(fusion, vaporization),

solid, liquid, gas phases

Freezing/Boiling point determinations, van’t Hoff factor

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