50 ml of 1M oxalic acid is shaken with 0.5 g of wood charcoal. The final concentration of the solution after adsorption is 0.5 M. Calculate the amount of oxalic acid adsorbed per gram charcoal.
Amount of oxalic acid present initially =1×501000×63=3.15g
Amount after adsorption =0.5×501000×63=1.575g
Amount adsorped =1.575g
∴ Adsorption per gram =1.5750.5=3.15g