A solution is prepared by dissolving 17.6g Ammonium sulfate(NH_4)_2SO_4 (Molar Mass: 132.17g/mol) in enough water to make 121.0mL (0.121L) of stock solution. A 12.30mL (0.0123L) sample of this stock solution is added to 59.00mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution.