What volume of 90% alcohol by weight (d = 0.8 g ml1) of ethanol must be used to prepare 40 ml of 10% alcohol by weight (d = 0.9 g ml1)?
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The mass percent of ethanol is 10.1 %. ... Percent of alcohol by volume ( ABV) is the volume of ethanol in 100 ... The density of 12.5 % ABV at 20 °C is 0.9784 g/cm 3 .
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