Chapter 16

Question 1

Amines are organic derivitates of _____

Answer 1

Ammonia (NH3)

Question 2

There is always a lone pair on an amine unless what?

Answer 2

Unless it’s a 4 degree amine which turns into a quaternary ammonium ion (that has a permanent + charge)

Question 3

What degree of amines are the most electronegative?

Answer 3

1 and 2nd degree amines

Question 4

1 and 2 degree amines have higher boiling points than 3 degree because

Answer 4

They can hydrogen bond with each other but 3 degrees can’t

Question 5

T or F
3 degree amines have weaker hydrogen bonds and lower boiling points than alcohols

Answer 5

True

Question 6

Amines with up to ____ carbons are water soluble

Answer 6

6

Question 7

Do amines have strong odors?

Answer 7

Yes

Question 8

What is the order of basicity from strongest to weakest for amines?

Answer 8

Nonaromatic amines (strongest)
Ammonia
Aromatic amines (weakest)

Question 9

An ionic compound composed of an ammonium cation/anion

Answer 9

Ammonium salt

Question 10

T or F
Ammonium salts are much less soluable in water

Answer 10

False, much more soluble in water

Question 11

What is unique about quaternary ammonium ions?

Answer 11

They have a permanent positive charge and they are neither acidic nor basic because no H bonds and no lone pair

Question 12

How do you name ammonium salts?

Answer 12

Name of amine + acid used to form salt

Question 13

A naturally occurring nitrogen containing compound isolated from a plant

Answer 13

Alkaloids

Question 14

_____ are usually bitter, basic, and poisonous

Answer 14

Alkaloids
(Also opiates, caffeine, and nicotine)

Question 15

_____ are usually bitter, basic, and poisonous

Answer 15

Alkaloids
(Also opiates, caffeine, and nicotine)