CaF2 has a Ksp = 3.8*10^-11 at 25°C. What is the [F-] in a saturated solution of CaF2 at 25°C?

Question: CaF2 has a Ksp = 3.8*10^-11 at 25°C. What is the [F-] in a saturated solution of CaF2 at 25°C?
- Keywords:
  chemistry,
  equation,
  homework
Asked by tommyh to Andy on 13 Jun 2011.
- Andy MacLeod answered on 13 Jun 2011:
  
  Hi there tommyh. I don’t think I’ve been asked a question like that since GCSE chemistry! 😯
  
  I’m not exactly sure how to work it out, but I could probably find out how to work it out.
  
  Do you think you could?

Question: CaF2 has a Ksp = 3.8*10^-11 at 25°C. What is the [F-] in a saturated solution of CaF2 at 25°C?