When the barium chloride test is performed on a known solution of 0.1 M #Na_2SO_4#, what do you expect the observed results to be?
I expect to see a white precipitate.
If you add a solution of barium chloride to a solution of sodium sulfate, barium sulfate forms.
Barium sulfate is insoluble in water. It appears as a white precipitate.
The reaction is a double displacement reaction.
The equation for the reaction is
The net ionic reaction is