I'm a caveman when it comes to chemistry, I need help with this exercise, I don't know how to do it.
Given the following reaction: Al (s) + HCl (aq) --------> AlCl3 (aq) + H2 (g). If 8 liters of aqueous solution of 37% m / m of HCl are reacted, density of the solution of 1.19 g / cm3 with 900 g of a sample of Al that has 5% of impurities, what mass of AlCl3 is obtained ?