Mahesh Godavarti
0

One mole of Zinc weighs - 65.38 grams

One mole of Copper Oxide weighs - 79.545 grams


Number of moles of Zinc = 127/65.38  = 1.94

Number of moles of Copper Oxide = 160/79.545 = 2.011


Therefore, 1.94 moles of Zinc will react with 1.94 moles of Copper Oxide, 0.071 moles of Copper Oxide will remain unreacted.


The reaction is Zn + CuO = ZnO + Cu.


Therefore, 1.94 moles of Zn + 2.011 moles of CuO = 1.94 moles of ZnO + 1.94 moles of Cu + 0.071 moles of CuO.


1 mole of ZnO weighs - 81.37g

1 mole of Cu weighs - 63.55g


Therefore, we will end up with 158 gm of Zinc Oxide, 123 gm of Copper, and 6 gm of Copper Oxide.


Note that, you should make sure that 127 + 160 = 287 = 158 + 123 + 6