2 moles of Zinc react with a cupric chloride solution containing 6 . 023 × 10 22 formula units of CuCl 2 . Calculate the moles of copper obtained Zn s + CuCl 2 aq → ZnCl 2 aq + Cu s

According to the balanced equation, Zn s + CuCl 2 aq → ZnCl 2 aq + Cu s 1 mole of zinc requires 1 mole of cupric chloride to give 1 mole of copper. When 2 moles of zinc react with 0 . 1 mol of cupric chloride, then 0 . 1 mol of copper is obtained because 6 . 023 × 10 22 formula unit is equal to 0 . 1 moles. In this reaction, copper chloride gets exhausted and acts as the limiting reagent and the excess zinc remains as it is.