Part 05 Acid/Base General

Question 1

Bronsted Acid:

Answer 1

Donates a proton

Question 2

Bronsted base:

Answer 2

Accepts a proton

Question 3

At equilibrium the weaker acid and the weaker base are ___ stable and known as the ___ species in the rxn

Answer 3

More stable

Major species

Question 4

Strong acids have ___ conjugate bases

Answer 4

Weak

Question 5

Weak acids have ___ conjugate bases

Answer 5

Strong

Question 6

The larger the pKa, the ___ the acid

Answer 6

Weaker

Question 7

An acid can be deprotonated by a conjugate base of any acid if the pKa difference is greater than ___

Answer 7

2

Question 8

The Element Effect

Increasing EN (electronegativity) = ____ acidity

Answer 8

Increased

Question 9

The Element Effect

Descending a vertical column on the periodic table = ___ acidity

Answer 9

Increased

Question 10

Increased EN groups pull e- density through the bonds

Answer 10

The Inductive Effect

Question 11

Less negative = more stable = ___ basic = conjugate acid is ___ acidic

Answer 11

Less basic

More acidic

Question 12

The inductive effect decreases as e- withdrawing groups ___ ___ ___

Answer 12

Get further away

Question 13

The acidity of HA increases when the conjugate base, A- is ___ ___

Answer 13

Resonance stabilized

Question 14

What is the hybridization / s-character strengths?

Answer 14

SP / 50% - strongest
SP2 / 33%
SP3 / 25% - weakest

Question 15

Lewis acids ___ e- pairs

Answer 15

Accept e- pairs

Question 16

Lewis bases ___ e- pairs

Answer 16

Donate e- pairs

Question 17

Lewis acids are __philes

Answer 17

Electrophiles

Question 18

Lewis bases are __philes

Answer 18

Nucleophiles

Question 19

Electrophiles are e- ___

Answer 19

e- poor

Question 20

Nucleophiles are e- ___

Answer 20

e- rich

Question 21

An acid that completely dissociates is a ___ acid

Answer 21

Strong