November 17, 2024, 05:37:59 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Amount of NaHCO3 needed to maintain the pH at 7.5? (NH4CL slon)  (Read 2633 times)

0 Members and 1 Guest are viewing this topic.

Offline pioneer

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Amount of NaHCO3 needed to maintain the pH at 7.5? (NH4CL slon)
« on: May 27, 2011, 11:31:28 PM »
Hi,

I have  a 120 L tank filled with NH4CL solution (Concentration is 76 mg NH4Cl/L).I need to maintain the pH at 7.5. How much NaHCO3 (sodium bicarbonate) should I add to get the desired pH (7.5)?
Logged

Offline pioneer

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Re: Amount of NaHCO3 needed to maintain the pH at 7.5? (NH4CL slon)
« Reply #1 on: May 28, 2011, 05:41:27 AM »
Thank you for the reply.

I tried the (LogC vs. pH) diagram but I am not sure if this was the only method I can use, and if this is the only method I need to be sure.
Logged

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27847
  • Mole Snacks: +1812/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Amount of NaHCO3 needed to maintain the pH at 7.5? (NH4CL slon)
« Reply #2 on: May 28, 2011, 07:47:56 AM »
If you have such plot, you can use it - but that's equivalent to stating "if you are given an answer, than you have an answer".

In general this is multicomponent acid/base equilibrium, not necessarily an easy one to solve.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: [1]   Go Up
« previous next »
Sponsored Links