Pheromones are compounds secreted by the females of many insect species to attract males. One of these compounds contains 80.78 percent carbon 13.56 percent hydrogen and 5.66 percent oxygen. A solution of 1.00 g of this pheromone in 8.50 g of benzene freezes at 3.37ºC. What are the molecular formula and molar mass of the compound? (The normal freezing point of pure benzene is 5.50ºC.) Kf = 5.12 ºC /m – Can you explain how to get this answer?