November 28, 2024, 03:38:28 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: 1 [2]   Go Down

Topic: pKa Help  (Read 17796 times)

0 Members and 3 Guests are viewing this topic.

Offline LK

  • New Member
  • **
  • Posts: 7
  • Mole Snacks: +0/-0
Re: pKa Help
« Reply #15 on: March 16, 2008, 06:25:33 PM »
pKa 2.8 acidic => negatively charged at pH 7 (e.g. acetic acid)
pKa 2.8 basic => neutral at pH 7 (e.g. cyclophosphamide or 3-nitroaniline)

pKa 2.8 => can be anything

Logged

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27863
  • Mole Snacks: +1813/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: pKa Help
« Reply #16 on: March 16, 2008, 06:31:56 PM »
I have never heard about such use of acidic/basic adjective. Can you show us a reference?

What about hydrocyanic acid? pKa 9.31. Basic?

What about hypothetic pKa=7.00 acid, 50/50 at pH=7.0? Basic? Acidic? Neutral?
« Last Edit: March 16, 2008, 06:46:16 PM by Borek »
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: 1 [2]   Go Up
« previous next »
Sponsored Links