Chem ch 15 and 16

Question 1

tatomerization

Answer 1

relocation of H atoms.

between ketone and enol - called keto-enol (KET)

Question 2

alpha

Answer 2

attached to 4 carbons

Question 3

beta

Answer 3

attached to 3 carbons

Question 4

gamma

Answer 4

attached to 2 carbons

Question 5

derivative of ammonia

Answer 5

amines

Question 6

ammonia can or can’t accept hydrogens?

Answer 6

can accept

Question 7

ammonia has strong or weak base?

Answer 7

weak

Question 8

nitrogen can have how many electrons?

Answer 8

5

Question 9

an ammonium ion is?

Answer 9

NH4 (one less than 5)

Question 10

CH3NH2 name

Answer 10

methanamine

Question 11

naming amines

Answer 11

either isopropanamine or 2-propanamine

Question 12

CH3-N-CH2CH3 name

Answer 12

N-methyl ethyl amine

Question 13

use N, N, etc if…

Answer 13

there is more than one substituent

Question 14

NH2 as a substituent is called…

Answer 14

amino, ie 3-amino methyl hexane

Question 15

hetrocyclic amines

Answer 15

the N is part of the ring

Question 16

NH3 is (properties) (3 is the best at everything)

Answer 16

highly soluble and can make H bonding and H bonding within themselves

Question 17

NH3 boiling point

Answer 17

not higher than alcohol, but higher than alkane

Question 18

highest boiling point?
CH3CH2OH
CH3CH2NH2
CH3CH2CH3

Answer 18

CH3CH2OH - highest,CH3CH2NH2 - second highest

Question 19

order of basicity of amines (greatest to least - only 3) (basicity starts w/ basic straight line)

Answer 19

The # of H atoms that are replaceable.

nonaromatic amine > NH3 >aromatic amine

Question 20

nitrogen is how many bonds?

Answer 20

3

Question 21

common name for amines ex.

Answer 21

methyl amine

Question 22

IUPAC name for amines - ex propane

Answer 22

2-propanamine

Question 23

how many electrons in nitrogen?

Answer 23

5 in valence shell

Question 24

if a nitrogen has 5 electrons, it’s positive or neutral?

Answer 24

neutral - they’re all taken

Question 25

if a nitrogen only has 4 electrons, it’s..

Answer 25

a positive nitrogen ion (remember this) and it’s in a bracket with a positive charge or written like NH4+

Question 26

NH3

Answer 26

ammonia

Question 27

NH4+

Answer 27

ammonium ion

Question 28

there is no quatranary ammonia, but there is a quatranary…

Answer 28

ammonium ion (NH4+)

Question 29

simple 2 and 3 (secondary and tertiery amine)

Answer 29

(R)2NH and (R)3NH (the Rs are the same) like 2 methyls or 2 ethyls

Question 30

how to tell if NH is primary, secondary or tertiery

Answer 30

if it’s NH2, it means it’s only attached to 1 carbon (3 total) and it’s primary. IF it’s NH, then it’s secondary.

Question 31

when naming amines that have 2 different types of groups attached…

Answer 31

look for parent - longest chain with N attached. name it ethylamine. The shorter one is the branch and it starts w/ N. N-methyl. So, N-methylethylamine

Question 32

use N,N if..

Answer 32

it’s 2 of the same alkyl - ie 2 methyls

Question 33

use N-alkyl N-alkyl if..

Answer 33

there are 2 different alkyls