Aluminum pellets react with a solution of copper(II)nitrate in a metal replacement reactionIf 78.3 g of aluminum reacts, how many grams of copper are produced?
find moles, using molar mass: 78.3 g Al 26 98 g/mol 2.902 mol of Al by the reaction 2 Al 3 Cu(NO3)2 - 2 Al(NO3)3 3 Cu 2.902 mol of Al produces 3/2 as many moles of Cu 4.35 moles Cu using molar mass: 4.35 moles Cu 63.55 g/mol 276.65 grams of Cu your answer, rounded to 3 sig figs is 277 grams of Cu
