Hi, Im having some trouble with this chemistry problemAll the help I can get is appreciated! A granulated sample of aircraft alloy (Al, Mg, Cu) weighing 8.72 g was first treated with alkali to dissolve aluminum, then with very dilute HCl to dissolve the magnesium, leaving a residue of copperThe residue after alkali-boiling weighed 2.1 g, and the acid-insoluble residue from this weighed 0.69 g.
