Please Help! :)
The Ksp of PbF2 is 2.7×10-8.

What is the concentration of F− in 991 mL of a saturated PbF2 solution?
[F−] = ______ M

Question

Please Help! :)
The Ksp of PbF2 is 2.7×10-8.

What is the concentration of F− in 991 mL of a saturated PbF2 solution?
[F−] = ______ M

cooltowl · Answer

@Gerardo_cast23

anonymous · Answer

So this is another ICE problem. Can you figure out the balanced equation for this problem?

cooltowl · Answer

PbF2 arrows Pb2+ OH-

cooltowl · Answer

I think it's this?

cooltowl · Answer

Pb2+=x 
OH-=2x

anonymous · Answer

Why OH?

cooltowl · Answer

Sorry it's  PbF2 arrows Pb2 + 2F-

anonymous · Answer

$$PbF_{2} <-> 2F^{-} + Pb ^{2+}$$

This right?

cooltowl · Answer

okay so now I have to set up an equation but the problem that I have is what do I do with 991mL?

cooltowl · Answer

I actually got it lol its .00377 or 3.78e-3 but thank you:)

anonymous · Answer

Sorry about that. I had to run to the dining hall at my school before it closed.