April 25, 2024, 01:08:06 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Dissociation of sodium carbonate in water  (Read 22108 times)

0 Members and 1 Guest are viewing this topic.

Offline dt5sphd

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
Dissociation of sodium carbonate in water
« on: December 12, 2009, 10:50:10 AM »
I know this might sound silly, but could anyone complete this reaction:
Na2CO3 + H2O  :rarrow: ?
For some reason i don't want to believe that its NaOH + H2CO3
Also, would i get HCO3- ions or OH- ions here ?
Thank you.
Logged

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3652
  • Mole Snacks: +222/-42
  • Gender: Male
Re: Dissociation of sodium carbonate in water
« Reply #1 on: December 12, 2009, 01:57:42 PM »
HCO3- (sic) seems really unlikely, can you draw a structure, look at valence electrons etc? If you mean HCO3- look at the bicarbonate ion, and into Ka's etc to see the extent of the reaction
Logged

Offline dt5sphd

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
Re: Dissociation of sodium carbonate in water
« Reply #2 on: December 12, 2009, 03:45:22 PM »
Sorry i did mean HCO3- not HCO3-. What do you mean by "look into Ka's etc" ?
Logged

Offline savy2020

  • Full Member
  • ****
  • Posts: 150
  • Mole Snacks: +7/-9
  • Gender: Male
Re: Dissociation of sodium carbonate in water
« Reply #3 on: December 13, 2009, 10:05:00 AM »
Since sodium carbonate is a salt of a weak and strong base, the anion undergoes hydrolysis{reaction with water}.
So HCO3- and OH- are formed when a proton transfer occurs from H2O to CO32-.
Also again HCO3- undergoes hydrolysis accepting proton from water forming H2CO3 and OH-
Logged
:-) SKS
Pages: [1]   Go Up
« previous next »
Sponsored Links