A solution of a drug was freshly prepared at a concentration of 300 mg/mL. After 30 days at 25°C, the drug concentration in the solution was 75 mg/mL. Assuming first-order kinetics, when will the drug decline to one-half of the original concentration? Assuming zero-order kinetics, when will the drug decline to one-half of the original concentration? Answer #1 = Blank 1 days Answer #2 = Blank 2 days

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