Thursday
July 31, 2014

Homework Help: Chemistry

Posted by john peterson on Sunday, June 17, 2007 at 8:39pm.

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.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, ...
Chem - You made up a saturated solution of calcium sulfate (CaSO4). The temp is ...
chemistry - you made up a standard solution of calcium sulfate (CaSO4). the ...
Chemistry. Check my answer please! - A 1.994 g sample of gypsum, a hydrated salt...
Chemistry - A 2.914 gram sample of gypsum, a hydrated salt of calcium sulfat, ...
chemistry - Calculate the xolubility of calcium sulfate in 0.010 mol/L calcium ...
chemistry - 10). What is the molarity of an HCl solution if 42.5 mL of a 0.110 M...
CHEMISTRY--PLEASE HELP, URGENT - A saturated solution of CaSO4(aq) is made in a ...
Chemistry - Hi, I have a few chemistry problems that I'm having trouble solving...
Chemistry - consider 1.0 L of a solution which is 0.55 M HF and 0.2 M NaF (Ka ...

Search
Members