1.5 g of H-activated charcoal was used to adsorb gold from 1 L gold cyanide pregnant leach solution at 25oC, pH = 5.5 and 150 rpm. The analysis was carried out at 8 concentrations and after 48 hours, the solution was filtered and gold concentration in the barren solution was measured with ICP-MS. Using the data presented in Table 2, determine the following: 1. The equilibrium adsorption attained after 48 hours and plot the equilibrium adsorption data versus the equilibrium concentration of gold in solution (15 marks)