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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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asteriskek asteriskek
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6 years ago
A 100.-mL sample of solution contains 10.0 mmol of Ca2+ ion. How many mmol of solid Na2SO4 must be added in order to cause precipitation of 99.9 of the calcium as CaSO4? The Ksp of CaSO4 is 6.1  105. Assume the volume remains constant.
   
  a.
  17.4
   
  b.
  10.0
   
  c.
  61.0
   
  d.
  71.0
   
  e.
  6.1
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yaman5959yaman5959
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6 years ago
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asteriskek Author
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6 years ago
Good timing, thanks!
Smair87
wrote...

Yesterday
Thank you, thank you, thank you!
courtneyrmcd
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2 hours ago
Thanks for your help!!
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