calculate the mass of sodium chloride produced when 5.50 moles of sodium reacts in excess chlorine gas.

Answer 1

2Na + Cl2 ==> 2NaCl
5.5 mols Na x (2 mols NaCl/2 mols Na) = 5.5 mols Na x 2/2 = 5.5 mols NaCl.

Convert to grams. g = mols x atomic mass.