Consider an anionic polymerization of 1.0 mol of styrene in tetrahydrofuran solution with 1.0x10- mol of n-BuLi initiator. At 50% conversion, 0.25x10- mol of HO is added to the reaction. Then the reaction goes to completion (water as a terminator). a) Write the mechanism of the reaction (consider the termination by water). b) Write the expressions giving conversion as a function of time for the reaction. c) Calculate Xn for the product.