PLEASE ANSWER THE FOLLOWING QUESTION WITH CLEAR STEPS.

(13) The thermodynamic dissociation constant of formic acid (HCOOH) is Kd=1.77x10-4 in water at 25C and 1 atm. With this information (and neglecting the intrinsic dissociation of water): (a) Determine the molality (and pH) at equilibrium if one prepares a solution by dissolving initially 4.1 g of acid in 500 g of water. g (b) Repeat the calculation when preparing a solution with 0.1 mol of HCl and 0.2 mol of potassium formiate (HCOOK) in 500 g. (Both HCl and HCOOK are strong electrolytes, leading to the formation of the weak eletrolyte HCOOH in situ after their full dissociation.) Data: Consider the activity coefficient for the unionized formic acid as y(formic acid) 1