ORGO EXAM 2 AHHHHHH HELP

Question 1

Same connectivity, different arrangement of groups

Answer 1

stereoisomers

Question 2

Non-super imposable mirror images; mostly same properties

Answer 2

Enantiomers

Question 3

Stereoisomers that are not enantiomers; atleast one conformation stays the same

Answer 3

Diastereomers

Question 4

Max number of stereoisomers when given chiral centers?

Answer 4

2^n (n = chiral centers)

Question 5

Degrees of unsaturation formula

Answer 5

2C+2-H-X+N
____________
2

Question 6

achiral compound with mirror image of chiral carbon inside

Answer 6

Meso compound

Question 7

A measure of the amount of disorder in a system

Answer 7

entropy

Question 8

delta S is

Answer 8

Entropy

Question 9

Delta H is

Answer 9

Enthalpy (heat)

Question 10

As temperature increases, Entropy increases/decreases

Answer 10

Increases

Question 11

As temperature decreases, Entropy increases/decreases

Answer 11

Decreases

Question 12

If Enthalpy (H) is exothermic (-) and Entropy (S) is positive (+), the reaction will be

Answer 12

Always spontaneous

Question 13

If Enthalpy (H) is endothermic (+) and Entropy is negative, the reaction will be

Answer 13

Always nonspontaneous

Question 14

If Enthalpy (H) is endothermic (+) and Entropy (S) is (+), the reaction will be

Answer 14

Spontaneous at high temperatures and nonspontaneous at low temperatures

Question 15

If Enthalpy (H) is exothermic (-) and Entropy (S) is negative (-), the reaction will be

Answer 15

Spontaneous at low temperatures and nonspontaneous at high temperatures

Question 16

Rotation of plane-POLARIZED light

Answer 16

Optical Activity

Question 17

Separation of enantiomers by temporarily converting to diastereomers

Answer 17

Resolution

Question 18

Can be converted to chiral in one step

Answer 18

Prochiral

Question 19

A platform for distinguishing enantiomers, prochiral groups, and s-center recognition

Answer 19

receptor

Question 20

Elimination reaction

Answer 20

Forming a double bond

Question 21

Bond dissociation energy is
Defined as?

Answer 21

Enthalpy
one measure of the strength of a chemical bond A−B

Question 22

ΔG formula

Answer 22

ΔG=ΔH-TΔS

Question 23

Exergonic ΔG:
Endergonic ΔG:

Answer 23

1. -
2. +

Question 24

Exergonic Keq:
Endergonic Keq:

Answer 24

1. Larger than 1
2. Less than 1

Question 25

X axis of energy diagram is ________________
Y axis of energy diagram is

Answer 25

RXN
Energy

Question 26

Wants to donate an electron pair (-)

Answer 26

Nucleophile

Question 27

Wants to accept an electron pair (+)

Answer 27

Electrophile

Question 28

Trans or cis more stable? Why?

Answer 28

Trans; less steric strain