Tin (II) ions react with periodate ions in acid medium to give iodide and tin (IV) ions. 25 mL of a 0.250M solution of tin(II) nitrate react with 45.00 mL of a 0.100 M solution of sodium periodate. Assuming 100% yield and additive volumes. What is the concentration of tin (IV) and tin (II) ions after reaction is complete?