Chemistry

I 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?

It is a spectator ion, the chloride ion is in solution on both sides. CaCl2 is ionic, and is in ions in water solution.

correction: sulfate ion should be hydrogen sulfate ion

Yes, it is a spectator ion. Why? Because CaCl2 is soluble (it isn't a precipitate), it isn't a gas, and it isn't a weakly ionized substance. CaSO4 is more soluble in HCl than it is in water BECAUSE of k2 for H2SO4; i.e., HSO4^- = about 10^-2.

  1. 👍 0
  2. 👎 0
  3. 👁 122

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temp. above 170 C in a crucible until a constant mass is reached. The mass of anhydrous CaSO4 is 1.577g. what is percent by mas of water in the

    asked by neha on February 9, 2010
  2. Chemistry

    A 1.994-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO_4_, is heated at a temperture greater than 170 degrees C in a crucible until a constant mass is reached. The mass of the anhydrous CaSO_4_ salt is 1.577g. What

    asked by Karen on October 4, 2010
  3. chimistry

    What is the solubility of calcium sulfate (CaSO4) in 0.30 M aqueous sodium sulfate (Na2SO4)? (Ksp of calcium sulfate = 2.0 10–5 M) 1.7 10–5 M 6.7 10–5 M 1.4 10–3 M 1.5 10–3 M

    asked by ormond on January 28, 2017
  4. Chemistry. Check my answer please!

    A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temp. above 170 C in a crucible until a constant mass is reached. The mass of anhydrous CaSO4 salt is 1.577 g. Calculate the percent by mass of

    asked by Sarah on November 21, 2008
  5. Chemistry

    Hydrated calcium sulfate contains 55.8% sulfate by mass. Calculate the value for "n".

    asked by Sia on October 27, 2010
  6. Chemistry

    A 2.914 gram sample of gypsum, a hydrated salt of calcium sulfat, CaSO4, is heated at a temperature greater than 170 degrees Celcius in a crucible until a constant mass is reached. The mass of the anhydrous CaSO4 salt is 2.304

    asked by Sara on September 24, 2012
  7. Chemistry

    Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x

    asked by Maggie on April 12, 2010
  8. chemistry

    Calculate the solubility of calcium sulfate in 0.010 mol/L calcium nitrate at SATP

    asked by Lawrence94 on April 3, 2008
  9. chemistry

    Calculate the solubility of calcium sulfate 0.010 mol/L calcium nitrate at SATP

    asked by Ross on April 7, 2008
  10. chemistry

    A 0.500 L solution of 7.50 M hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. Calcium chloride – a chemical used to control highway dust, strengthen concrete mixes, and add flavor to foods – is

    asked by BT on March 1, 2010

More Similar Questions