Determine the outlet concentration x1 in the water solution and in the trichloroethane solution using an analytical equation.

Predicting Extraction for an Existing Tower with a Given Number of Steps. An existing tower contains 5.0 theoretical steps. It is desired to predict its performance under the following conditions using the system water–acetone–trichloroethane given in Example 27.4-4: An inlet water stream of 1000 kg/h containing 8.0 wt % acetone is extracted with 750 kg/h trichloroethane containing 1.0 wt % acetone in this countercurrent tower at 25°C. Determine the outlet concentration x1 in the water solution and in the trichloroethane solution using an analytical equation. Also, plot the equilibrium and operating lines, and step off 5.0 steps. Assume dilute solutions.

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