November 24, 2024, 07:32:32 AM
Forum Rules: Read This Before Posting


Topic: Acid Base Titrations  (Read 2151 times)

0 Members and 1 Guest are viewing this topic.

Offline Maybe

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Acid Base Titrations
« on: April 01, 2012, 09:24:15 PM »
10mL of a solution of a weak acid ( HA, Ka=4.66*10^-6) was titrated with .1500 M NaOH; the equivalence point occured at 4.67 mL of NaOH.
Calculate the pH at 0.00 mL of added HCl and at 2.00 mL of added HCL

I hope someone can help me walk through this problem. I am used to the textbook problems that have the molarity of the acid.
 ??? ??? ??? ??? ??? ??? ??? ???
Thanks in advance.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27861
  • Mole Snacks: +1813/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Acid Base Titrations
« Reply #1 on: April 02, 2012, 04:53:57 AM »
Calculate the pH at 0.00 mL of added HCl and at 2.00 mL of added HCL

Strange, you were titrating with NaOH< not adding HCl.

Quote
I hope someone can help me walk through this problem. I am used to the textbook problems that have the molarity of the acid.

http://www.titrations.info/titration-curve-calculation

http://www.titrations.info/acid-base-titration-curve-calculation
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline Maybe

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Re: Acid Base Titrations
« Reply #2 on: April 02, 2012, 09:32:06 PM »
I apologize I forgot to change the question.
However, I found out the molarity by using the equivalence point. And I was then able to calculate the pH at different additions of NaOH.  :)

Sponsored Links