4. (20 points) A 0.50 molar aqueous solution of glucose (C6H12O6) flows into a Bioreactor at a rate or 0.20m3/min. The specific gravity of the solution is 1.03. Calculate a) The mass concentration of glucose in kg/m3 (Ans: mass conc. =90kgC6H12O6/m3 ) (Hint: Using 1m3 of the 0.50 molar glucose (aq) solution as basis, calculate the mass of glucose only in this 1m3 solution.) b) The mass flowrate of glucose only in kg/s (Ans: 0.3kgC6H12O6/s ) c) The mass fraction of glucose (Ans: x=0.087) (Hint: Calculate the total mass of 1m3 of the solution and then from the mass of glucose only in this 1m3 solution, find the mass fraction of glucose)