Ag(s) + 2HNO3 = AgNO3 + NO2(g) + H2O
Cu(s) + 4HNO3 = Cu(NO3)2 + 2NO2(g) + 2H2O
basically we are dissolving the alloy in the concentrated nitric acid
precipitating it and drying it
and based on these equations
we find mass of Ag and Cu?
then find the mass percent composition of both?
i still don't see how (AgCl) was involved.