Assume that you have an aqueous solution of an unknown salt. Treatment of the solution with dilute BaCl2. AgNO3, and Cu(NO3)2 produces no precipitate. Which of the following anions might the solution contain? (Check ALL anions it could be.) (T NO3 OHT S042- Solution BaCl 2 gives precipitate for SO 4 2- anion and thus sulfate is not present in the solution. AgNO 3 gives precipitate for Cl - anion and thus chloride is not present in the solution. Cu(NO 3 ) 2 gives precipitate for NO 3 - anion and thus nitrate is not present in the solution. The only anion left is hydroxide (OH - ) and thus hydroxide only is present in this solution. .

1. Assume that you have an aqueous solution of an unknown salt. Treatment of the solution with
dilute BaCl2. AgNO3, and Cu(NO3)2 produces no precipitate. Which of the following anions
might the solution contain? (Check ALL anions it could be.) (T NO3 OHT S042-
Solution
BaCl 2 gives precipitate for SO 4
2-
anion and thus sulfate is not present in the solution.
AgNO 3 gives precipitate for Cl -
anion and thus chloride is not present in the solution.
Cu(NO 3 ) 2 gives precipitate for NO 3
-
anion and thus nitrate is not present in the solution.
The only anion left is hydroxide (OH - ) and thus hydroxide only is present in this solution.