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

Answer 1

@Gerardo_cast23

Answer 2

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

Answer 3

PbF2 arrows Pb2+ OH-

Answer 4

I think it's this?

Answer 5

Pb2+=x
OH-=2x

Answer 6

Why OH?

Answer 7

Sorry it's PbF2 arrows Pb2 + 2F-

Answer 8

\[PbF_{2} <-> 2F^{-} + Pb ^{2+}\]

This right?

Answer 9

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

Answer 10

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

Answer 11

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