For each of the following stirred tank reactions, carry out the following analysis.

a. Write an initial value problem for the mass of the substance.b. Solve the initial value problem and graph the solution to be sure that

are correct.

A 500-L tank is initially filled with pure water. A copper sulfate solution with a concentration of 20 g/L flows into the tank at a rate of 4 L/min. The thoroughly mixed solution is drained from the tank at a rate of 4 L/min.

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m(0) and lim m(t) 1 →∞