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Ochem > Chapter 2 lecture > Flashcards

Chapter 2 lecture Flashcards

1
Q

Bronsted lowry acid

A

contains proton net

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2
Q

Bronsted lowry base

A

lone pair or pi bond with net charge 0 or -

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3
Q

CH3OH +NH2-=
name the acid, base, and conjugates

A

CH3O- +NH3
Acid is CH3OH, Base is NH2-, Conjugate base CH3O, Conjugate acid NH3

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4
Q

CH3OH +HCl=
name the acid, base, and conjugates

A

CH3OH2+ +Cl-

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5
Q

Acid strength

A

tendency of acid to donate proton therefore more readily a compound donates proton high acidity

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6
Q

Ka equillibrium

A

If Ka is 1 products and reactants are =
If Ka greater for products products favored
If Ka greater for reactants reactants favored

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7
Q

What factors determine acid strength

A

Charge, element, inductive, resonance, hybridization

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8
Q

What happens if a molecules + charge increases

A

acidity increases

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9
Q

Rank acidity
1. OH- -H+= O2-
2.OH- +H+=OH2
3. OH3+

A

1,2,3

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10
Q

What happens when you increase electronegativity?

A

increase acidity

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11
Q

ranking increasing acidity
CH4, HF, OH2, NH3

A

CH4
NH3
OH2
HF

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12
Q

What happens when size decreases

A

decreases acidity

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13
Q

Rank acidity
HI,HCl,HF,HBr

A

HF,HCl,HBr,HI

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14
Q

What is inductive effect

A

pull of electron density through sigma bonds caused by electronegative differences

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15
Q

What are some ways when inductive effect is occurring the acidity increases

A

Electronegative greater= more acidity
electronegative atoms are closer together

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16
Q

resonance effect and how does it effect acidity

A

delocalization of charge through resonance influence acidity therefore more resonance structure is more acidity

17
Q

How does hybridization affect acidity

A

S character increases= increase in acidity

18
Q

Rank which is more acidic
CH3CH3, CHCH, CH2CH2

A

CH3CH3,CH2CH2,CHCH

19
Q

Lewis bases

A

electron pair donors

20
Q

lewis acids

A

electron pair acceptors

21
Q

pi bases

A

use pi bonds as electron donors

22
Q

Electrophile

A

Lewis acid and attracts electrons

23
Q

Nucleophile

A

lewis base and attracts nucleus

24
Q

(CH3)3C+ +Br-+

A

(CH3)3CBr

Ochem (10 decks)

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