Hey there Sign in to join this conversationNew here? Join for free

The effect of excess alkali on this molecule?

Announcements Posted on
Study Help needs new mods! 14-04-2014
Post on TSR and win a prize! Find out more... 10-04-2014
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    Hi, I've attached the diagram of the before addition of excess alkali and after (after is below the black line)



    I was wondering how do you know the alkali would only affect the OH and SO3H here?

    Why does it have no effect on NH2?
    Attached Thumbnails
    Click image for larger version. 

Name:	chem q.jpg 
Views:	14 
Size:	61.1 KB 
ID:	154116  
    • 49 followers
    Offline

    ReputationRep:
    -SO3H groups are very acidic (think about H2SO3), similarly phenolic OHs are also acidic

    NH2 is a basic functionality and won't be effected

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?

    this is what you'll be called on TSR

  2. this can't be left blank
    this email is already registered. Forgotten your password?

    never shared and never spammed

  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By completing the slider below you agree to The Student Room's terms & conditions and site rules

  2. Slide the button to the right to create your account

    Slide to join now Processing…

    You don't slide that way? No problem.

Updated: June 5, 2012
Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.