exam 2

Question 1

nucleiphilicity

Answer 1

how fast nu will attack
-a measure of rxn rates

Question 2

basicity

Answer 2

measure of position of equilibirum for acid base rxn

Question 3

I-

Answer 3

strong nu
-weak base
-highly polarizable bc of its size

Question 4

sn1

Answer 4

weak nu

Question 5

sn2

Answer 5

strong nu

Question 6

H-

Answer 6

strong base but cant be nu bc it is too small and not polarizable

Question 7

Oh-

Answer 7

strong nu

Question 8

h2o

Answer 8

weak nu

Question 9

sn2 rate

Answer 9

dependent on strength on nu

Question 10

sn1

Answer 10

unaffected by nu, only substrate/lg

Question 11

strong nu

Answer 11

favors sn2

Question 12

polarizability

Answer 12

determines strength of nu
-all abt the dipole

Question 13

s

Answer 13

strong nu
-large atom
-electrons far from nucleus

Question 14

h2s

Answer 14

strong nu

Question 15

weak nu

Answer 15

f, h2o and roh

Question 16

sn1 rate determining step

Answer 16

-loss of the lg and creation of the carbocation therefore, lg affects them more than sn2

Question 17

more stable lg

Answer 17

=better sn1 rxn

Question 18

good lg

Answer 18

conjugate bases of strong acids

Question 19

I

Answer 19

also a good leaving group

Question 20

strong acids

Answer 20

hcl, br, i, so4, no3, clo4, clo3

Question 21

leaving group stability

Answer 21

I>BR>CL<S>OH2</S>

Question 22

OH-

Answer 22

bad leaving group and a strong base

Question 23

aprotic

Answer 23

sn2
-no protons on an electroneg atom
-wont form solvent shell around negative nu (negative nu)
-SLOWER IN PROTIC

Question 24

polar protic

Answer 24

sn1
-stabalalizes positive carbocation with h bonds
-a solvent that has a proton connected to an electronegative atom (H bonds)
-can serve as a source of protons