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

The mass of NaCl produced is calculated as below

write the reacting equation

that is 2 Na + Cl2 = 2 NaCl

by use of mole ratio between Na : NaCl which is 2 : 2 t he moles of NaCl is also = 5.50 moles

mass of NaCl = moles x molar mass

=5.50 moles x58.5 g/mol = 321.75 grams