A liquid mixture containing 60.0wt%n-octane and 40.0wt%n-decane flows into a tank mounted on a mass balance. The mass in kg indicated by the scale is plotted against time. The data fall on a straight line that passes through the points (t=3min,m=150kg) and (t=10 min,m=250kg ). Use the specific gravity from appendix B.1 to find the density for each species. a. Assuming volume additivity, determine the mixture average density. b. Using a simple weighted average of the pure component densities, determine the mixture average density. c. Which method to determine the mixture average density is best for this system. Explain based on the molecular structures of the species in the mixture. d. Calculate the mass flow rate of the liquid mixture. e. Use the more accurate estimate of the mixture average density to estimate the volumetric flow rate of the liquid mixture. f. What is the mass of the empty tank