March 28, 2024, 11:15:00 AM
Forum Rules: Read This Before Posting


Topic: Titrations with polyprotic acids.  (Read 2192 times)

0 Members and 1 Guest are viewing this topic.

Offline timzor

  • New Member
  • **
  • Posts: 4
  • Mole Snacks: +0/-0
Titrations with polyprotic acids.
« on: July 06, 2010, 01:23:49 PM »
Hi guys,

Just having trouble understanding why polyprotic acids have more than one equivalence points. For example when titrating H2SO4 with NaOH, why are there two equivalence points

H2SO4 --> HSO4- + H+
HSO4- --> SO42- + H+

If I react the H+ with OH- wont both reactions go forward to replace the H+ and so only one equivalence point formed?

Thanks.

Offline cliverlong

  • Full Member
  • ****
  • Posts: 611
  • Mole Snacks: +60/-14

Sponsored Links