January 02, 2025, 10:45:13 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: why reic acid is acid  (Read 4567 times)

0 Members and 1 Guest are viewing this topic.

Offline timchai

  • Regular Member
  • ***
  • Posts: 47
  • Mole Snacks: +0/-7
why reic acid is acid
« on: March 06, 2009, 09:00:20 PM »
i want to ask why it is , where is its ionizatble H atom , why it has PKa -3.xx , where acidic
Logged

Offline timchai

  • Regular Member
  • ***
  • Posts: 47
  • Mole Snacks: +0/-7
Re: why reic acid is acid
« Reply #1 on: March 06, 2009, 09:00:57 PM »
not uric acid
Logged

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27891
  • Mole Snacks: +1816/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: why reic acid is acid
« Reply #2 on: March 07, 2009, 04:09:50 AM »
I have no idea what reic acid is. I suppose I am not alone.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline timchai

  • Regular Member
  • ***
  • Posts: 47
  • Mole Snacks: +0/-7
Re: why reic acid is acid
« Reply #3 on: March 07, 2009, 08:40:21 PM »
en.wikipedia.org/wiki/Uric_acid
Logged

Offline nj_bartel

  • Sr. Member
  • *****
  • Posts: 1487
  • Mole Snacks: +76/-42
Re: why reic acid is acid
« Reply #4 on: March 07, 2009, 08:46:00 PM »
why would you say 'not uric acid?'

At any rate, it's acidic because it's conjugate base is stable - the carbonyl oxygen carries a large portion of the negative charge when the amine gets deprotonated.
Logged

Offline timchai

  • Regular Member
  • ***
  • Posts: 47
  • Mole Snacks: +0/-7
Re: why reic acid is acid
« Reply #5 on: March 07, 2009, 11:41:06 PM »
why N H can lose its H atom , why it is so acidic , ,can u use inductive effect to explain and show its conjugated base
Logged

Offline macman104

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1644
  • Mole Snacks: +168/-26
  • Gender: Male
Re: why reic acid is acid
« Reply #6 on: March 08, 2009, 12:44:44 AM »
Quote from: timchai on March 07, 2009, 11:41:06 PM
why N H can lose its H atom , why it is so acidic , ,can u use inductive effect to explain and show its conjugated base
As nj said, it is due to the conjugate base being so stable.  You can observe the same thing when you look at acetone and acetylacetone.  I've drawn some pictures to help illustrate the idea for you.
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links