Separation process. Urgent. please help me with full handwritting solution. Please dont take answers from other source. Thank you

QUESTION 5: 15 marks Feed salt (NaCl) solution has a concentration of 12 g/L and a density of 1005.5g/L using the polymeric membrane for desalination by reverse osmosis. The density of permeate solution is 997.3 g/L and the concentration is 0.468 kg NaCl/m. The permeation rate through the membrane with an area of 0.004 m2 was found to be 0.384 x 10-7 m/s. The pressure difference across the membrane is 56 atm. Operating temperature is 25C. The osmotic pressure o atm and 2.48 atm between the concentration 0 g mol NaCl/kg H20 and 0.01 g mol NaCl/kg H20. the other osmotic pressure is 7.48 atm and 15.31 atm between the concentration 0.1 g mol NaCl/kg H20 and 0.5 g mol NaCl/kg H20. Determine the following a) b) Permeate Flux for both the solute and solvent. (4 mark) Osmotic pressure on the feed side and permeate side and the difference. (5 mark) Solute and solvent permeability constants and percentage rejection. c) (6 mark)