When copper metal is added to silver nitrate in solution, silver metal and copper (II) nitrate are produced. What mass of silver is produced from 100. g Cu?

Answer 1

Write the balanced equation:

Cu(s) + 2AgNO₃(aq) ==> Cu(NO₃)₂(aq) + 2Ag(s)

moles Cu present = 100. g Cu x 1 mol Cu/63.55 g = 1.574 moles Cu

mass of Ag produced = 1.574 mol Cu x 2 mol Ag / 1 mol Cu x 107.9 g Ag / mol Ag = 340. g Ag