Question 1. Liquid benzene and liquid n-hexane are blended to form a stream flowing at a rate of 300kg/h. An on-line densitometer (an instrument used to determine the density) indicates that the stream has a density of 0.850g/mL. Using the specific gravity of benzene 0.879g/mL and n-hexane 0.659g/mL, estimate the mass and volume feed rates of the two hydrocarbons to the mixing vessel. Which assumptions did you have to make to obtain the result