Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Calc > Chem Exam 2 > Flashcards

Chem Exam 2 Flashcards

1
Q

Condensation Rxn/polymers

A

COOH links with OH or NH3 and lose H2O
diacid btw =O
diol/diamine btw -O/NH

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

Examples of Condensation Polymers?

A

Amides, esters

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

Addition polymers?

A

Hydrocarbon chain, ylene

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

Steps of an oxidation

A

Primary alcohol -> aldehyde -> carboxylic acid

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

Carboxylic Acid

A

-oic
Always C1
-C=OOH

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

Esters

A

-oate
COOH + OH
C=OO
always C1

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

Aldehydes

A

-al
Always C1
C=O-H

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

Ketones

A

R-C=O-R

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

Alcohols

A

R-OH

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

Amines

A

Primary: NH2
Secondary: -NH-
Tertiary: three bonds to N

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

Ethers

A

-polar

R-O-R

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

Structural Isomers

A

Same Molecular Formula different connectivity

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

Geometric Isomers

A
  • cis/trans
  • double bonds
  • no chiral center
  • different chemistry
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Enantiomers/Stereo Isomers

A

Chiral centers

-mirror images not super imposable

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

What are examples of reducing agents?
What bonds form?
What functional group does the molecule go to?

A

Metal + Hydrogen : LiAlH4, NaBH4
= -> -
go to alcohol

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

Examples of Oxidizing agents?
What bonds are made?
Order of oxidation?

A

Chromates/Dichromate
- -> =
primary alcohol-> aldehyde (or keytone) -> carbox acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When Sulfuric Acid is present what takes place?

A

Elimination

Double bonds form (creates unsaturation), H2O forms, lose OH

18
Q

Wen HI or HBr is present in a rxn what occurs?

A

Substitution

Lose OH, add I

19
Q

Substitution Rxn?

A

Replace H w/ Halogen

20
Q

Hydrogenation addition rxn

A

+H2
unsaturated -> saturated
=/= -> -

21
Q

Halogenation addition rxn

A

+X2

22
Q

Hydrohalogenation

A

+HX
Polar
=/triple bonds form and positive attacheds to C with most Hydrogens

23
Q

What happens to H and = in Oxidation?

A

Decrease H, add double bonds

24
Q

What happens to H in Reduction Rxn?

A

Increase H, lose =

25
Q

Addition to C=O

A

Polar added across C=O with positive to O

26
Q

Which hydrocarbons are Aliphatic?

What are their equations?

A

Alkenes/olefins: CnH2n

Alkynes CnH2n-2

27
Q

Aromatic and formula?

A

benzene ring

CnHn

28
Q

Chain Alkanes formula

A

CnH2n+2

29
Q

Formulas for iso and tert?

A

(CH3)2

(CH3)3

30
Q

How do pi bonds relate to boiling point?

A

More pi bonds = more polar = higher boiling point

31
Q

Cis or trans more polar?

A

Cis>Trans

32
Q

If benzene is not a base, what is it called when naming?

A

“phenyl”

33
Q

Ester synthesis reaction?

A

acid + alcohol -> ester + H2O

C=O-OH + OH -> C=O-O + H2O

34
Q

Amide synthesis reaction?

A

weak base + strong acid-> ammonium salt
NH2 + HCl -> NH3+ Cl-

Carbox acid + ammonium salt -> amide + H2O
C=O-OH + H-NHR’ -> RCONHR’ + H2O

35
Q

Examples and definition of condensation polymers?

A

Polyesters, polyamides

Remove small molecules (water)

36
Q

How many sigma/pi bonds in each type of bond?

A

Single: 1 sigma
Double: 1 sigma 1 pi
Triple: 1 sigma 2 pi

37
Q

Describe band gap in semiconductors, insulators, and conductors

A

Semiconductors: small band gap
Insulators: large band gap
Conductors: 0 band gap, metals

38
Q

n-type vs p-type doping?

What does doping do?

A

(n)egative type doping: electrons added, dopants have one extra val electron
(p)ositive type doping: take away electrons; add holes; dopants have one less val electron
Doping lowers the band gap and thus increases conductivity

39
Q

How does stability relate to bond order and bond length?

A

Most stable=Highest bond order=shortest length

40
Q

How do conductivity and temperature relate in semiconductors and conductors?

A

Semi: Cond increases as Temp increases
Cond: Cond decreases as Temp increases

41
Q

Combustion Rxn?

A

Burn organic molecules in O2, creates CO2 and H2O

42
Q

All amino acids are chiral except? because?

A

Glycene because it is the simplest and has two H’s

acid w/H + amine

Calc (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions