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You have 10 ounces of 15 % lactic acid ointment in stock: you then add 320 grams of plain ointment base. What is
the final concentration of the mixture in percent strength? Answer: 8 The correct answer is: 10 You have a drug in a
stock solution of 25% and need to prepare 400mL Of a solution with a concentration of 15mgme. How … Show more
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