2AgNO3(aq) + CuCL2(aq) --> 2AgCl(s) + Cu(NO3)2(aq)
The concentration of Ag(NO3)2(aq) at t = 30s is .42 mol/L. At t = 60.0 its concentration is .28 mol/L. What is the change in [CL^-] during this time?
The Attempt at a Solution
Not really sure even how to begin.