Determine the composition of a brass alloy if 12.15 g of th ealloy reacts with HCl(aq) to yield 2.305g ofZnCl2?
When the brass is an alloy of Zn and Cu. Cu does not react with HCl(aq), but does react according to the equation
Zn(s) + 2HCl(aq) --------------------> ZnCl2(aq)+ H2(g)