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Concentrated orange juice can be modeled as a binary mixture of solids and water. The concentrated juice is made by evaporating water from natural juice that contains 12 wt% solids and 88 wt% water. The fresh juice is passed through an evaporator that removes pure water to produce a product that is 58% solids and 42% water. Solve a system of mass balance equations in order to determine the flow rate of fresh juice needed to produce 100 kgmour of concentrated juice. Solution: In