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Author Question: A solution is 2.00 x 10-3 M Ba(NO3)2 and 0.0500 M KF. Given that the Ksp of barium fluoride is 1.5 x ... (Read 57 times)

colton

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on: Aug 23, 2018
A solution is 2.00 x 10-3 M Ba(NO3)2 and 0.0500 M KF. Given that the Ksp of barium fluoride is 1.5 x 10-6,
   
  a.
  Qsp = 1 x 10-4 so a precipitate will be observed.
   
  b.
  Qsp = 2 x 10-4 so a precipitate will be observed.
   
  c.
  Qsp = 1 x 10-6 so no precipitate will be observed
   
  d.
  Qsp = 2 x 10-5 so a precipitate will be observed.
   
  e.
  Qsp = 5 x 10-6 so a precipitate will be observed.

Question 2

Given that the Ksp for calcium fluoride CaF2 is 3.2 x 10-15, which of the following describes a solution that is 2.00 x 10-5 M NaF and 2.00 x 10-5 M Ca(NO3)2?
   
  a.
  Q = 4 x 10-10 and there will be a precipitate formed
   
  b.
  Q = 8 x 10-10 and there will be a precipitate formed
   
  c.
  Q = 8 x 10-15 and there will be no precipitate formed
   
  d.
  Q = 1.3 x 10-13 and there will be a precipitate formed
   
  e.
  Q = 8 x 10-15 and there will be a precipitate formed


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Chou

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Reply #1 on: Aug 23, 2018
Answer to Question 1

e

Answer to Question 2

e


colton

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Reply #2 on: Aug 23, 2018
Thanks


Chou

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Reply #3 on: Aug 23, 2018
Welcome :)


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