Timeline for pH of Strong Acid (and why it seems like it should be zero)
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 13, 2016 at 15:57 | comment | added | Niels Kornerup | I am explaining why the OP's infinity's would not imply that the pH is always zero. | |
| Jun 13, 2016 at 15:51 | comment | added | DavePhD | So you are basically repeating what the OP did to get infinities, rather than explaining that there are no infinities involved. | |
| Jun 13, 2016 at 15:23 | comment | added | Niels Kornerup | I was using the assumption that a strong acid dissociates completely, which I know is not actually the case. If it dissociates completely, then the concentration of HA would be zero. | |
| Jun 13, 2016 at 15:14 | comment | added | DavePhD | The statement "the concentration of HA must be zero at equilibrium" is incorrect. Ka is 24 for nitric acid. For Ka of other strong acids see depts.washington.edu/eooptic/links/acidstrength.html The undissociated fraction depends upon Ka and concentration. | |
| May 25, 2016 at 22:04 | history | answered | Niels Kornerup | CC BY-SA 3.0 |