FOR QUESTION 5-7):Solve the problemscompletely
5) 1.60 g of an unknownmolecular substance is dissolved in 20.0 g of benzene. The freezingpoint of pure benzene is 5.5oC, and the freezing pointof the mixture is 2.8oC. What is the gram formula massof the unknown substance?
6) Complete the following two Bronsted-Lowrey reactionsand indicate the acid (A), base (B), conjugate acid (CA), andconjugate base (CB). (20)
                 HSO4-(aq) +H2O(l)  Â
