Precipitation Calculation

[Adam]

I got this question in my chemistry class:

500 mL of 0.1 M Ca 2+ is mixed with 500 mL 0.1 M SO4 2- . What mass of calcium sulfate precipitates? Ksp for CaSO4 is 7.1X 10^-5.

I tried using an ICE table, thinking it was similar to the equilibrium calculation but that didn't work out. I've also looked in my chemistry book for a similar problem, but there wasn't anything like this. Can anyone suggest a way, or give a nudge in the right direction. I'd really appreciate it.

[guanine]

Here might be a nuge. I don't think I've done a problem like this but I can sort of see how it works.

Ca 2+ (aq) + SO4 2- (aq) --> CaSO4(s)

Right?


Ksp = [Ca2+][SO4 2-]

[ ] is concentration (i.e. molarity)


I think this might help. Look up Ksp in The Dictionary for more help. It says that this should work the same way that any other equilibrium problem works.

guanine