3. Chemical Reactions / Limiting Reagent / Problem 5
Problem 5
Consider the following reaction: 2CuS(s) + 3O2(g) → 2CuO(s) + 2SO2(g) Initially, the reaction mixture contains 3.0 mol CuS and 4.0 mol O2. How many moles of the excess reactant remains after the reaction has occurred completely?
