Brainscape's Knowledge GenomeTM

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


See full index

Chemistry > Organic Chemistry 14C > Flashcards

Organic Chemistry 14C Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

What is the formal charge of a Carbon with 4 bonds?

A

0

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

What is the formal charge of a Carbon with 3 bonds and 1 lone pair?

A

-1

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

What is the formal charge of a Carbon with 3 bonds?

A

+1

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

What is the formal charge of an Oxygen with 2 bonds and 2 lone pairs?

A

0

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

What is the formal charge of an Oxygen with 1 bond and 3 lone pairs?

A

-1

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

What is the formal charge of an Oxygen with 3 bonds and 1 lone pair?

A

+1

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

What is the formal charge of a Nitrogen with 4 bonds?

A

+1

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

What is the formal charge of a Nitrogen with 3 bonds and 1 lone pair?

A

0

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

What is the formal charge of a Nitrogen with 2 bonds and 2 lone pairs?

A

-1

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

What is the approximate pKa of Alkanes?

A

50

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

What is the approximate pKa of Alkenes?

A

43

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

What is the approximate pKa of Hydrogens?

A

36

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

What is the approximate pKa of Amines?

A

35

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

What is the approximate pKa of Alkynes?

A

25

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

What is the approximate pKa of Esters?

A

25

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

What is the approximate pKa of Nitriles?

A

25

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

What is the approximate pKa of Ketones?

A

20-24

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the approximate pKa of Aldehydes?

A

20-24

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the approximate pKa of Alcohols?

A

17

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the approximate pKa of Water?

A

16

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What does the acronym RICHES stand for?

A

Resonance, Induction, Charge, Hybridization, Electronegativity, Size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Is the conjugate base a positive or negative ion?

A

Negative, anion

23
Q

Are more electronegative atoms that are closer in proximity make the molecule more or less acidic?

A

More acidic.

24
Q

If a charge is more positive, is it more or less acidic?

A

More acidic.

25
Q

If a charge is more negative, is it more or less acidic?

A

Less acidic.

26
Q

Do more electronegative atoms stabilize charge better or worse?

A

Better.

27
Q

True or False: The least electronegative atom is the least stable.

A

True

28
Q

True or False: The most electronegative atom is the most stable.

A

True

29
Q

Do p orbitals or s orbitals stabilize a negative charge better?

A

S orbitals

30
Q

Which hybrid orbital type stabilizes electrons better? sp, sp2, or sp3?

A

sp, p orbitals are farther from the nucleus (+) and cannot stabilize as well.

31
Q

Are lower or higher pKa’s more stable?

A

Lower pKa’s

32
Q

Are bigger or smaller atoms more acidic?

A

Bigger atoms are more acidic.

33
Q

True or False: Alkanes are soluble in water.

A

False, alkanes are non polar.

34
Q

True or False: Alcohols are soluble in water.

A

True, shorter alkyl chains are more soluble

35
Q

If there is an OH (hydroxyl) group, there is a _______.

A

Alcohol

36
Q

Do alkanes or alcohols have higher boiling points?

A

Alcohols due to hydrogen bonding.

37
Q

True or false: Except for methanol, alcohols are slightly less acidic than water.

A

True

38
Q

Do ethers or alcohols have higher boiling points?

A

Alcohols. Ethers lack hydrogen bonding.

39
Q

List the functional group priority list when naming a molecule (IUPAC).

A
  1. Alcohol
  2. Amine
  3. Ether
  4. Halogen
40
Q

What is the difference between a bicyclo fused rign and a bicyclo bridged ring?

A

A fused ring has no carbons in the central bonds between two rings. A bridged ring can have one or more.

41
Q

What are the electronegativities of Oxygen and Chlorine? Which one is more electronegative?

A

O = 3.44

Cl = 3.16

O > Cl

42
Q

What are the electronegativities of Carbon and Hydrogen? Which one is more electronegative?

A

C = 2.55

H = 2.20

C > H

43
Q

True or False: More electronegative atoms better stabilize negative charge (anion)?

A

True. Trend is true as you go across the periodic table.

44
Q

What is a thiol?

A

Thiol is an organosulfur compound that contains a carbon-bonded sulfhydryl group. Thiols are the sulfur analogue of alcohols.

45
Q

True or False: thiols (R-SH) are a bigger molecule than alochol yet have weaker intermolecular forces.

A

True. Alcohol can hydrogen bond while thiol canno.

46
Q

When a thiol is not the highest priority, what is the nomenclature?

A

“mercapto”

i.e. 2-mercaptoheptan-4-ol

47
Q

True or False: Alcohols are more acidic than thiols.

A

False

pKa around 13 for thiols, and 16 for alcohols

48
Q

Are thiols soluble?

A

Somewhat, but less than alochols.

49
Q

Are thiols polar?

A

Yes

50
Q

How many degrees of saturation does a double bond count for?

A

1

51
Q

How many degrees of saturation does a ring count for?

A

1

52
Q

How many degrees of saturation does triple bond count for?

A

2

53
Q

In Alkenes, when do you use the Cis/Trans labels? Which is Cis and which is Trans?

A

When identical groups lie on either side of the double bond. Cis is when the groups are in the same direction. Trans is when the groups are oriented in opposite directions.

54
Q
A

Chemistry (5 decks)

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