- #1
chmmr
- 4
- 0
Say I've got a solid lump of CaSO4 that I put into water.
When I first learned about Solubility Constants, Ksp was defined as [Ca][SO4], meaning how much Calcium and Sulfate ions dissolved. But now I found out when I look up a Ksp value it is [Ca][SO4][tex]\gamma[/tex]Ca[tex]\gamma[/tex]SO4. I understand the concept of activity, that those new constants take into account the activity of the water on the ions. So does this number just mean how much of the CaSO4 would dissolve in a nonpolar solvent?
When I first learned about Solubility Constants, Ksp was defined as [Ca][SO4], meaning how much Calcium and Sulfate ions dissolved. But now I found out when I look up a Ksp value it is [Ca][SO4][tex]\gamma[/tex]Ca[tex]\gamma[/tex]SO4. I understand the concept of activity, that those new constants take into account the activity of the water on the ions. So does this number just mean how much of the CaSO4 would dissolve in a nonpolar solvent?