Question

which is stronger base?
CH3O- or (CH3)3CO-

Answer 1

@ganeshie8 , @iambatman what do you think?

Answer 2

@Dexter810 can you help?

Answer 3

please speak in details

Answer 4

I'll find out which is a better acid .
The stronger acid is the one , which has a more stable conjugate base , okay ?
So , here : In CH3O- and (CH3)3CO- , (CH3)3CO- has 3 methyl groups , methy groups are +I groups , they are electron donating groups , so they destablise the whole molecule . Whereas there is only 1 methy gropu in CH3O- . So , CH3O- is comparitively more stable . Hence , it is a stronger acid . Thus , (CH3)3CO- is a stronger base .

Answer 5

thanks. you're right but i think if we consider spatial structure of bases we can gain more precise answer.

Answer 6

How do we get by considering spatial structure ??

Answer 7

i read in a book that precise reason of your answer related to solvent.

Answer 8

i mean molecules of solvent assemble around oxygen to stabilize it but in (CH3)3CO- because of methyl groups solvent molecules can't stabilize it.but CH3O- has more less methyl groups.

Answer 9

what do you think @chappy0729 ?

Answer 10

How do molecules of solvent stabilise it ?

Answer 11

assume solvent is water. hydrogen of water molecule is partialy positive.so hydrogens of water molecules assemble around negative oxygen and stabilize negative charge.

Answer 12

Hmmmm..okay okay .

Answer 13

is this correct?

Answer 14

It sounds correct , but not a major reason for it to be more basic I feel ...

Answer 15

if you have another reasons i'm glade to hear?

Answer 16

any way thanks for your helping.

Answer 17

No , the one i mentioned above is the only one I know of..No problem :)