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UA / Organic Chemistry / CHEM 3603 / Do onions have negative change?

Do onions have negative change?

Do onions have negative change?

Description

School: University of Arkansas
Department: Organic Chemistry
Course: Organic Chemistry 1
Professor: Sefat alwarsh
Term: Fall 2016
Tags: organic and Chemistry
Cost: 50
Name: Organic Chemistry Study Guide for Test 1 (02/10/2017)
Description: These notes cover material from chapters 1-3
Uploaded: 02/06/2017
8 Pages 31 Views 3 Unlocks
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ГИ


Do onions have negative change?



Organic Chem I Study Guide (Test i ch 1-3) Lenis Dot Structures -electron (e) (dot representation of molecules

HH сид и си сам, сен cations have positive charges (electron deficient)

cation

anions

have

negative

charges

(electron

rich)


What isomers have?



anion

assigned

Formal Charge is Leuis Dot Structure

to individual

atorns in a

Formal Charge (F.C.) = number of – number of

valence e è an atom "owns" owns" refers to number of bonds or lone pairs

H2oto has bê , H has le


What is atomic orbital?



6 + 1(3) = 9 e total FC = 6-5 =1t for o If you want to learn more check out Describe the multiple functions of cell division.

a shared counted as 1, lone

angsaprIS

pair

cont as 2)

have

the

same

formula but

a

Isomers

C2H4O

different structure

H

HM

or

4-C-

ö-6-H

H-C-C-0-1

MM

Resonance

Structures.

HCONH

| - HE

-EN

Hybrid If you want to learn more check out How should one be structuring an argument?

partial negative charge

NI-H

o bond =

T bond =

single bond

multiple bond

(double or

triple)

energies.

resonance structures have different Lower energy is more stable the major contributer has the lower

energy

СН2 – С – Сңа

-

— —

MAJOR CONTRIBUTER more bonds, fewer charges

I

— CH2 - C - CH3 We also discuss several other topics like Enumerate the four subfields of anthropology?

:0–

MINOR CONTRIBUTER

fewer bands, more charges major contributer, choose

the

To decide which is the one with - more octet - more bonds - heast separation If you want to learn more check out How is the present value of a growing annuity derived?

- negative change in more

electronegatire atom of charge

CH N-H > 0-4

in creasing bond length И-Е И-С 2 H-Or

Geometry /Band

and school

hub

school

Angle

linear

trigonal planar

120°

of

pepoient

esbo1

Studoup

fond sust

Do a

v drob nos

sa outro

Do moto Don't forget about the age old question of What are the two important aspects of voluntary exchange?

to voisindas sl Thoda o

o to puna

sueys

moup

vasadbe

rotomis

woof

SOU

bH

dysgu

Any charge

unstable

on

a

carbon

makes

it

extremely

Star

-(inshared + 1⁄2 shared)

Formal charge

younu

maior

linear

Combination

of

Atomic

Orbitals

(LCAO)

Atomic

Orbitals

Overlap or

Combine

2 Types of

New Orbitals

5890 omron T We also discuss several other topics like What is the meaning of personal selling?

2. Hybrid

Atomic Orbitals

Overlap Molecular Orbitals

o - (s-s) o (s-p) Relative o Cp-p) linear T (p-p) parallel

Energy

of

Orbitals

Hybridization

2p/ 1

1

1

Sp3

1

Sp

1

Sp

1

Sp3

zs 12

Combination

of

Is and 3p

Sp3 - 4 o bonds, tetrahedral Sp2 - 3 o bonds t l a bond , trigonal Sp - 2o bands + 2t bonds, linear

planar

triple bond

Single bond double bond

bond length

Sud Sour

Single bond a double bond a triple bond

bond strength

sp3 25% sa Sp2 33% SL Sp 50% s. Brønsted-Loury acids donate protons (hydrogen

ions without é ) Brønsted Lowry bases accept protons Cht)

General

Acid-Base

Reaction

H-A

acid

+

B

base

=

+

A

conjugate

acid

H-Bt

conjugate

base

loss

of

proton

Acid

strength

tendency of an

acid

to donate a tt

Equilibrium

Constant

Hgot] [4

]

{products

starting

materials

ka VS pka

pka = – log ka.

Study Soun

pka

ka

10 VS

larger number

stronger acid

10.50

smaller number

weaker acid

+5 VS +50 Smaller number larger number stronger acid weaker acid

1 Equilibrium always

acid and base

favors

formation

of

the weaker

H-CC-H

pka = 25

+ 2NH2

H-c= c

+

NH2

pka = 38

pka 25 738 pka.

acid strength favors the weaker

equation

acid

Acidic Strength - elemental effects - inductive effects

Factors

- resonance effects - hybridization effects

stronger

acids have weaker

conjugate bases

C-H N-

H

increasing

The weakest

O-H F-H acidity / increasing electronegativity

conjugate base is

also the most

stable

Inductive

effect MUST be through

o bond

CIH

C- -

C-H

HC = CH

Снд CH, = CH,

increasing acidity

Lewis acids are Lewis bases are

é pair

pair

acceptor

donors

All Bronsted-Lowry acid/base Lunis acid/base BUT not all acid/ base are Brønsted-Lowry

are

Lewis

acid/ base

An electrophile Electrophiles have

is a Lewis acid. It

positive charge and are

spopu! (0 =0) scrab

Thuogin

sopiting

alkyl halides, alcohols, ethers, amines, thiols, and

apmul

spuog

Z-2

Study four

spinodios 2400on puo souhalo stars to sound to spopu! (H puno huo suoqros opht

Амт от му—

мото2 ООО – smof amountul to utburns pun adat

zdous pun buipusa - sunustap school pouofound

us

Study

वालमा गड पावणालयw hry - (салт) үл сала олум им до окутар

buna do a out pour squause of thot rodut sit) - th wout buto burythuo of a stroop shindano ON

th up of a boop 50508

TTO 50 indoopou a sosna TTO you ena stroa simy 200 sendoopru TV

EHO

Judy So

ug - 7 - EHD

K

29t

EHO

è rich

are

and

Nucleophiles

Lenis base,

charge

a

is

negative have

nucleophile

A

-

tuanyap

a

aldehydes, ketones, carboxylic acids, esters, amides, acid chlorides

Intermolecular forces: Van der W aals - forces that occur in all

molecules, even nonpolar molecules. These are the weakest interaction

Langer

Longer

charge = stronger distance = weaker

attraction

attraction

Covalent Molecules Van der Waals L dipole-dipole L hydrogen bonding

strength of inter molecular forces

a molecule =

Larger

larger

surface area of attractive force

strength of

boiling

intermolecular

point

forces

/

Hydrogen bonding is bond and can only bonded to O, N ,

not an actual

occur with hydrogen or F

Нң и

Hydrogen bonding

ни и

dipole - dipole

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