For the serial dilution, your stock solution must have a concentration of 3.5 mg/mL. How much diluent must be added to the 5.3 mg/mL red cell to prepare the stock solution? Show pertinent solution/s. What are the initial concentrations used for tubes 3, 5, and 6? Show pertinent solutions. What are the dilutions of the last positive tube and first negative tube respectively? Show computation.

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