Nitrogen And Sulfer

Question 1

Ammonia bond angle

Answer 1

107.8

Question 2

Naming of amines primary to tertiary:

Answer 2

Number of alkyl groups attached to the Nitrogen

Question 3

How does naming of amine vs alcohols differ?

Answer 3

Amine named for number of alkyl groups attached

Alcohol named for number of none H-substit groups attached

Question 4

What is more basic between cyclic amine and straight chain amine?

Answer 4

Straight chain amine is more basic, cyclic amine is more acidic
- lone pair delocalizes structure (similar to phenols)

Question 5

An amine + aldehyde/ketone condensation produces:

Answer 5

Imine

Question 6

Molecule with alkene and amine is called a:

Answer 6

N-amine

C=C-N

Question 7

What is the process for interconverting between Enamine and Imine similar to?

Answer 7

keto-enol tautomerism

Question 8

Amides are strong/weak acids/bases and why?

Answer 8

Weak base

- added carbonyl withdraws electron density from nitrogen through resonance

Question 9

Thiol is basically

Answer 9

SH - replace O with S

- polar

Question 10

Thiols can engage in what type of interactions alone:

Answer 10

Dipole dipole and VDW

Question 11

Thiols are more/less acidic than Alcohols and why?

Answer 11

More acidic, although steal weak acids, due to large size of Sulfur that can better disperse negative charge
- also Oxygen more EN less likely to give up proton

Question 12

How are thioesters produced?

Answer 12

Esterification between Thiol (R-SH) and COOH

Question 13

Aromatic ring with methyl group is called:

Answer 13

Toluene

Question 14

An amine is more/less acidic than an alcohol?

Answer 14

less acidic

Question 15

Sulfite vs Sulfate chemical formula

Answer 15

SO3 (2-) vs SO4 (2-)

Question 16

Sulfurous vs sulfuric acid (oxidation state meaning)

Answer 16

H2SO3 vs H2SO4

• ous = lower oxidation state -> corresponding to sulfite
• ic = higher oxidation state -> corresponding to sulfate