Calcultate the volume (in mL)of 0.250M silver nitrate solution required to react completely with a 5.00g piece of copper wire. (Assume the reaction runs at 100% yield.)

Answer 1

Here is an example. Just follow the steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html

The equation is
2Ag+(aq) + Cu(s) ==> Cu2+(aq) + 2Ag(s)