Chemistry help - example?

We have neutralised 50ml of chloride acid solution by adding 20ml of NaOH solution, c=0,25 mol*l-1. We leave 100ml of this acid to react with 3,4g of AgNO3 and we fill it upto 250ml with the destilated water. What will be the concentration of AgNO3 in solution after the reaction ends? Mr(AgNO3)=170; Mr(HCl)=36.5 Would anyone be so nice and explain to me the procedure of the calculation?