Why didn't a precipitate form with H2SO4 and Ag+ or Ca2+?
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Answer:
H2SO4 is a STRONG ACID and H2SO4 will go to completion (it 100% dissociates, or ionizes). No precipitates form in a solution containing a strong acid/base. Na2SO4 is not a strong acid, and if you look at your solubility chart you'll see that SO4^2- is not soluble with everything (hence a precipitate forms).
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H2SO4 is a STRONG ACID and H2SO4 will go to completion (it 100% dissociates, or ionizes). No precipitates form in a solution containing a strong acid/base. Na2SO4 is not a strong acid, and if you look at your solubility chart you'll see that SO4^2- is not soluble with everything (hence a precipitate forms).
Erin
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