Into two solutions of 100.mL acetic acid having concentration of 0.501M and 0.400M,2.04g and 2.02g of active charcoal are added, respectively. After the proper mechanical shaking and the volumetric analysis of the equilibrium concentration of the acetic acid (Ce), it is found that the acetic acid concentrations became 0.463M and 0.367M, respectively. Assuming the following rearranged Langmuir isotherm equation is applicable nCe=nmCe+knm1 What would be the estimated surface area of the active charcoal in m2/g, if a single acetic acid molecule has a surface area 2.51019m2