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November 26, 2014

Homework Help: General Chemistry

Posted by Kay on Monday, October 8, 2012 at 11:36pm.

I add 5 drops Potassium Iodide (KI) to 5 drops lead nitrate (PbNO3). The solution is centrifuged and the aqueous layer is discarded. I then add 5 drops of nitric acid (HNO3), 5 drops of hydrogen peroxide and 10 drops of dichloroethane (C2H4Cl2) to the precipitate.

The solution is shaken and lightly heated resulting in a clear aqueous solution with a deep red precipitate.

What anions are present in the precipitate? How do you know?

Appreciate the help.

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