4. An aqueous solution of Mg(OH)2 is added to an aqueous solution of HCl to form solid MgCl2 and H2O. If 40.5g of Mg(OH)2 and 35.0g of HCl are used:
a) Define limiting reactant
b) Determine the limiting reactant.
c) Calculate the mass of MgCl2 produced after the reaction has completed. d) If the percentage yield of MgCl2 is 85%, calculate the actual mass of MgCl2 obtained.
[ Ar : Mg =24.3 , H=1.0 , O = 16.0 , Cl = 35.5 ]