19. In a process to manufacture HCl, common salt and sulfuric acid are heated together. The HCl gas produced is cooled and absorbed in water to produce 31.5% HCl (by weight). Some HCl is lost during absorption. To produce 1 ton of 31.5% HCl, 550 kg of common salt and 480 kg of 98% H2SO4 were taken. The reaction goes to completion. Calculate i. Which reactant is excess? ii. What is the amount of HCl excess? iii. Calculate the composition and quantity