[FLgirl]

1. Write balanced net equations for the following reaction:

A. The precipitation of the chloride of Hg2 2+ in Step 1
B. The formation of a yellow precipitate in Step 3

Step 1- To a known solution of equal volumes 0.1 M AgNO3, 0.2 M Pb(NO3)2 and 0.1 M Hg2(NO3)2, we added two drops 6M HCl and precipitate formed.

Step 2- 2mL of distilled water was added to the precipitate and placed into a beaker full of boiling water. This dissolved most of the PbCl2 but not the others.  We decanted the liquid.

Step 3- Added one drop of 6M acetic acid and 3 drops 0.1 M K2CrO4 to the solution from step 2. Pb2+ was present bc a bright yellow precipitate of PbCrO4 formed.


I have no idea where to start, my lab manual doesn't show any examples. Can somebody show me an example?

[AWK]

Just write down reaction in steps 1 to 3

[FLgirl]

I dont know how to write the starting reaction..

[Hunter2]

You write the mercury ion and the Chloride ion. You get a compound of mercury and chloride.

Try it.