Timeline for How is the pKa of extremely weak acids determined?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 8, 2017 at 0:58 | history | edited | Melanie Shebel | CC BY-SA 3.0 |
deleted 2 characters in body
|
| S Dec 28, 2015 at 21:26 | history | bounty ended | Jan | ||
| S Dec 28, 2015 at 21:26 | history | notice removed | Jan | ||
| Dec 26, 2015 at 17:11 | vote | accept | Dissenter | ||
| Dec 22, 2015 at 0:28 | answer | added | NotEvans. | timeline score: 17 | |
| Dec 21, 2015 at 23:41 | answer | added | Ivan Neretin | timeline score: 15 | |
| Dec 21, 2015 at 22:05 | comment | added | NotEvans. | sirius-analytical.com/science/pka/methods-measuring-pka ? This kind of method is often used for pharmaceutical compounds, which are weakly acidic/basic to a certain extent. Shows good correspondence with lit. values for pKa of common chemicals too. | |
| S Dec 21, 2015 at 21:46 | history | bounty started | Jan | ||
| S Dec 21, 2015 at 21:46 | history | notice added | Jan | Draw attention | |
| Mar 31, 2015 at 10:39 | history | tweeted | twitter.com/#!/StackChemistry/status/582854736153616384 | ||
| Mar 29, 2015 at 22:37 | comment | added | ron | in this link | |
| Mar 29, 2015 at 22:37 | comment | added | ron | There are a number of different spectroscopic techniques that lend themselves to measuring pKa's. One approach involves ion cyclotron resonance. It can accurately assess gas phase equibria. Starting with a molecule with known pKa, add a second molecule with unknown (but expected to be within a few orders of magnitude) pKa and measure the equilibrium constant; work your way up to methane. Other studies have shown a high correlation between gas phase and solution pKa's, see for example pp. 97-98 | |
| Mar 29, 2015 at 21:11 | history | asked | Dissenter | CC BY-SA 3.0 |