Ch.2 Flashcards

1
Q

Intermolecular Forces

A

Interactions that exist between molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

London Forces

A

Induce a temporary dipole moment in a nearby molecule so an attractive dipole-dipole interaction results for a fraction of a second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Rank intermolecular forces from weakest to strongest

A

London, dipole-dipole, hydrogen bonding, ion-ion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is ion-ion bonding

A

Bonding between two ionic compounds (ex. NaCl, LiF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How does strength of intermolecular forces relate to boiling point?

A

Stronger intermolecular forces, higher boiling point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does surface area relate to boiling point?

A

Increased surface area, higher boiling point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the reactive part of a molecule?

A

The functional group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Bronsted-Lowry acid and base definitions

A

Acid: proton donor
Base: proton acceptor; donates electrons to a proton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Acidity Constant (Ka) Formula

A

[H3O+][A-]/[HA]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

pKa formula

A

pKa = log[Ka]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Strong acids are _____ bases and vice versa

A

weak

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Youcan stabalize a negative charge easily if pKa is ______, if it is difficult pKa must be ______

A

low; high

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How is pKa and electronegaticity related

A

Increased electronegativity, decreased pKa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Why are s orbitals more stable?

A

In s-orbitals, electrons are closer to the nucleus than p-orbitals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Does delocalizing a charge lower or raise pKa

A

Lowers; Charge is put on more than one atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Closer the electronegative atoms ____ the pKa. The more electronegative the atom the _____ the pKa. The higher amount of electronegative atoms, the _____ the pKa

A

lower, lower, lower

17
Q

Keq formula

A

10^ (± IpH-pKaI)

18
Q

If pH < pKa, the proton…

19
Q

If pH > pKa, the proton…

20
Q

Lewis base

A

An electron pair donator; donates to anything that is electron deficient

21
Q

Lewis acids

A

An electron pair acceptor

22
Q

Nucleophile

A

“proton-loving”, has a negative or partial negative charge

23
Q

Electrophile

A

“electron-loving”, positive or partial positive charge