clear solution, please

Problem 2: Methanol (CH3OH) is commonly produced by hydrogenating carbon dioxide (CO2) over reduced oxide surface. The feed to the reactor contains 2 moles of H, for each mol of CO2. Solve for the following: a) Calculate the stoichiometric reactant ratio b) Determine the limiting reactant and calculate percentage excess by which the other reactant is in excess c) Calculate mass feed rate of H, required to produced 2x109 of CH,OH per year, assuming that the reaction goes to completion and that the process operate for 24 hrs for 300 days only in a year