Phosgene, has the following elemental composition: 12.14% Carbon, 16.17% Oxygen and 71.69% Chloride by mass. It's molar mass is 98.9 g/mol. a) Calculate the empirical formula and then determine the molecular formula of this compound using the given molar mass. b) Draw three lewis structures for molecule that satisfies the octet rule for each atom. c) Using formal charges, determine which lewis structure is the dominant one. Explain Reasons d) Using average bond enthalpies. estimate delta H for the formation of gaseous phosgene from CO (g) and Cl_2 (g). Show the balanced equation.