Bleach, a solution of sodium hypochlorite, is made by bubbling chlorine gas into a solution of sodium
hydroxide:

Cl₂ (g) + NaOH (aq) → NaCIO (aq) + NaCl (aq) + H₂O (1)

What mass of sodium hypochlorite is produced when 55.0 L of chlorine gas is bubbled into a solution
containing 70.0 g of sodium hydroxide?

What mass of the excess reactant is left over?