00:01
This question, we're going to serve with magnesium fluoride and gf2.
00:05
This would be a solubility equilibrium with magnesium 2 plus, 2f minus.
00:12
And so this is s, 2s according to the more ratio, ksp, according to s.
00:19
Before we do that, magnesium 2 plus, f minus squared, ksp is 5 .2 times 10 to minus 11.
00:30
Go to s 2 s squared 5 .2 times 10 to the minus 11.
00:39
So go to 4s cubed.
00:42
First divide by 4.
00:44
Then take the cube root and we'll get the solubility here.
00:52
5 .2 x1 .11 minus divide by 4.
00:57
And the cube root gives me 2 .4 times 10 to the minus 4.
01:03
And that would be in moles per liter...