Which of the following leads to the formation of a precipitate? ...

[madam-professor]

Which of the following leads to the formation of a precipitate?
   
  a.
  Q = K_sp
   
  b.
  Q < K_sp
   
  c.
  Q > K_sp
   
  d.
  Q = 1
   
  e.
  K = 1

Question 2

Which, if any of the following mixtures will result in a precipitate. You might need to know that the
  K_sp for AgCN is 2.2 x 10^-16 and that for PbI₂ is 7.9 x 10^-9.
  I. a mixture that is 1.2 x 10^-6 M AgNO₃ and 2.4 x 10^-10 M NaCN
  II. a mixture that is 2.3 x 10^-4 M Pb(ClO₄)₂ and 4.6 x 10^-3 M KI
   
  a.
  both will produce precipitates
   
  b.
  Neither will produce precipitates
   
  c.
  I will precipitate but II will not precipitate
   
  d.
  II will precipitate but I will not precipitate
   
  e.
  More information is required to come to a conclusion.

[jazzlynnnnn]

Answer to Question 1

c

Answer to Question 2

c