Separation of a mixture 4 (a) this set of questions is about the separation of a mixture of ch3ch2ch2ch2ch2ch2ch2ch2nh2, p-bromobenzoic acid and naphthalene. using your answers to the above questions, complete the following flow diagram by drawing relevant skeletal (line bond) structures. mixture in hexane contains _amine p-bromobenzoic acid naphthalene reaction with hcl (aq) hexane layer contains water layer contains reaction with nahco3 (aq) water layer hexane layer reaction with naoh(aq) reaction with hcl(aq)