What mass of pyrazole (C3H4N2; molar mass = 68.08 g/mol) must be added to 451 g of benzene (C6H6; molar mass = 78.11 g/mol) in order for the solution to have a freezing point of 0.5oC? (Kf for benzene = 5.12oC ? kg/mol and the normal freezing point for this solvent is 5.5oC). Order the steps required to solve this problem correctly. Start with the first step at the top of the list.