1. The problem statement, all variables and given/known data In a titration lab we had water in it with Na2Cr04 and used AgNO3 to precipitate the Cl ions in the water and thus determine the amount of chlorine in the water. We were then left with AgCl in the beaker and poured it into a waste beaker. Now our teacher wants us to figure out how to convert the AgCl back to AgNO3. I have some ideas but not sure if they will work. 2. Relevant equations AgCl + ??? -> AgNO3 ksp of agcl= 1.8E-10, ksp of hcl = 1.1E-11, ksp cucl= 1.6E-7 3. The attempt at a solution I figured that cuno3 could potentially remove the cl by the copper bonding with it. Then if a preciptiate forms and HNO3 and then have the NO3 bond with ag to get agno3. Again not too sure and any help much appreciated.