If 15 drop of ethanol from a medicine dropper weigh 0.60grams how many drops from the dropper does it take to dispense 1.0mL of ethanol the density of ethanol is 0.80gmL?

First, calculate the weight of 1 drop of ethanol: 0.60 grams / 15 drops = 0.04 grams per drop. To dispense 1.0 mL of ethanol, you will need 1.0 mL / 0.80 g/mL = 1.25 grams. Finally, to find the number of drops, divide the total weight by the weight per drop: 1.25 grams / 0.04 grams per drop = 31.25 drops, round up to 32 drops.