|
Register | Search | Today's Posts | Mark Forums Read |
Chemistry Forum Chemistry Forum. Discuss chemical reactions, chemistry. |
![]() |
| LinkBack | Thread Tools | Display Modes |
#1
| |||
| |||
![]() You are assuming a pH of 4.7 by solving for pH in the henderson hasselbalch equation. The henderson hasselbalchquation depends on the common ion effect and on high molarity of the solute. So the pH will not drop either in the sea or in a bathtub or for any solvent in which the solute makes up at least .1 molarity. Hope this answers your question. ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- [Only registered users see links. ] The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
#2
| |||
| |||
![]() Hi, the tutor is right. The Henderson-Hasselbach equation is only valid for "normal" dilution. If you want to calculate more precise pH values in dilute solution, there must be considered many other aspects, which you will probably learn in physical chemistry (thermodynamic effects). For example, you has to consider the acivity coefficient of ions.... and some other aspects. Than soon you will have a very exicting equation which a lot of (unknown?)parameters, some of them have to be established by thermodynamic experiments. Donīt worry, just learn hard to understand this.............. [Only registered users see links. ]lid (GeneralChemTutor) wrote in message news:<40206e7a_1@127.0.0.1>... |
![]() |
Tags |
buffer , properties , restrange |
Thread Tools | |
Display Modes | |
|
|
![]() | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
protein purification | magnificientleo | Proteomics Forum | 11 | 12-29-2010 08:01 AM |
SDS-PAGE Protocol | moleculardude | Protein Science | 14 | 02-12-2010 10:27 AM |
Production of Monoclonal Antibodies - Technique in Mouse | Cellbiogal | Antibody Forum | 2 | 01-08-2009 09:52 PM |
Strange buffer properties | Oscar Lanzi III | Chemistry Forum | 0 | 02-08-2004 01:17 PM |
Strange buffer properties | William Penrose | Chemistry Forum | 0 | 02-05-2004 02:20 PM |