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Solubility for hydrated calcium sulfate in HCl

  1. Jun 17, 2007 #1
    was asked to consider the solubility for hydrated calcium sulfate in HCl.
    The principal acid my proffesor had posted for the solution was [ CaSO4(hyrdrated) + HCl <--> H30^+ + Ca^2+ + SO4^2- ]. I guess what I'm asking is what happened to the Cl^- and why isn't it reacting with Ca^2+ to produce CaCl2. ? It's not a spectator ion right??? But if it is why?
  2. jcsd
  3. Jun 17, 2007 #2


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    Chlorides are soluble, and the chloride ion will remain freely ionized. The "calcium chloride" will be present as ions of Ca(+2) and Cl(-1)
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