Forum Rules: Read This Before Posting


Topic: diprotic acid question  (Read 294 times)

0 Members and 1 Guest are viewing this topic.

Offline sandiegofan328

  • New Member
  • **
  • Posts: 6
  • Mole Snacks: +0/-1
diprotic acid question
« on: March 05, 2019, 06:30:42 PM »
Hi all!

I know the values of my Ka1 and Ka2 for a diprotic acid. How could I find the Ka value? I can't really find anything online or in my textbook. Is it as easy as adding the two numbers?

Thanks in advance!

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 24878
  • Mole Snacks: +1628/-395
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: diprotic acid question
« Reply #1 on: March 05, 2019, 06:35:30 PM »
You are confusing something. There is no such thing as Ka for diprotic acid - it has two separate Ka1 and Ka2 values for a reason.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info, PZWT_s1

Offline sandiegofan328

  • New Member
  • **
  • Posts: 6
  • Mole Snacks: +0/-1
Re: diprotic acid question
« Reply #2 on: March 05, 2019, 06:38:22 PM »
Sorry I meant Keq. :)

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 24878
  • Mole Snacks: +1628/-395
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: diprotic acid question
« Reply #3 on: March 05, 2019, 06:48:00 PM »
And what is Keq? Equilibrium constant of what?
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info, PZWT_s1

Sponsored Links