2-) An oily plant containing 22% oil by weight is extracted with pure hexane and the amount of oil is reduced to 0.8kg oil/100 kg inert solid. 1000kg of hexane is used for every 1000kg of inert oil plant. The downstream data are as in the table. Calculate the amounts and compositions of the currents per 1000kg of inert feed. Calculate what % of the oil in the oily plant is extracted with the solvent. Calculate the ideal number of stages. Downstream data; kg oil/ kg solution 0.20 .3 Solution adhering to solid (kg)/solid(kg)0.5780.6580.699(60P) a) Calculate the amounts and compositions of the streams produced per 1000kg of inert feed. b) Calculate what percentage of the oil in the oily plant is recovered with the solvent. c) Determine the ideal number of steps using the graphic method