Calculate the amount of pure ethanol needed to prepare 3 fl oz of 60% ethanol solution, using pure ethanol liquid and water: ________.
Fill in the blank(s) with the appropriate word(s).
54 mL
3 fl oz × 30 mL/1 oz = 90 mL
x = 90 mL × 60 mL pure ethanol/100 mL
x = 54 mL
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