Homework Help: chemistry

Posted by viv on Monday, April 30, 2012 at 11:24pm.

suppose you had a sample of water and you knew that either the silver ion or the barium ion were in the water . What negative ion could you add to this water sample that would precipitate out one of the ions but not the other?state which ion would form the precipitate and write its chemical formula?

chemistry - DrBob222, Monday, April 30, 2012 at 11:33pm
Add Cl^-. AgCl is insoluble but BaCl2 is quite soluble.
Ag^+(aq) + Cl^-(aq) ==> AgCl(s)

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