How would you go about testing for the presence of SO4-2 in the presence of NO3?

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How would you go about testing for the presence of SO4-2 in the presence of NO3?

2007-10-23 07:53:24 · 2 answers · asked by bete 1 in Science & Mathematics ➔ Chemistry

2 answers

Ba+2 ion would do it

Ba(NO3)2 is soluble, BaSO4 is not

so add some BaCl2 (aq) to the solution .... if you get a ppt then you have SO4-2, if not you have NO3-

2007-10-23 07:57:13 · answer #1 · answered by Dr Dave P 7 · 2⤊ 0⤋

This is the classic sulphate test.

Using Barium Nitrate a white precipitate of Barium Sulphate will occur.

Ba(NO3)2(aq) + H2SO4(aq) = BaSO4(s) + 2NHO3(aq)

2007-10-23 14:59:12 · answer #2 · answered by lenpol7 7 · 1⤊ 0⤋