Much commercial hydrochloric acid is prepared by the reaction of concentrated sulfuric acid with sodium chloride:
H2SO4 + 2NaCl → Na2SO4 + 2HCl
How many kilograms of concentrated H2SO4, 96% H2SO4 by mass, are required to produce 17.0 L of concentrated HCl (d = 1.20 g/mL, 42.0% HCl by mass)?