Milos is an avid maker of tinctures, which are concentrated liquid forms of natural herbs. One common herb that is formed into a tincture is the vanilla bean, which is sold in stores under the moniker “Vanilla Extract.” One means by which to create a tincture is by soaking the herb in grain alcohol for several weeks. It is possible to purchase grain alcohol called Everclear, which is 97% alcohol; However, vanilla requires a 60% alcohol solution (97% is too strong). To adjust for alcohol that is too strong, the solution can be diluted with water (0% alcohol) to achieve the desired concentration. Suppose Milos is planning on making a 12-ounce vanilla extract. How much water and alcohol should he use?

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
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Chapter13: The Chemistry Of Solutes And Solutions
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Milos is an avid maker of tinctures, which are concentrated liquid forms of natural

herbs. One common herb that is formed into a tincture is the vanilla bean, which is sold in

stores under the moniker “Vanilla Extract.” One means by which to create a tincture is by

soaking the herb in grain alcohol for several weeks. It is possible to purchase grain alcohol

called Everclear, which is 97% alcohol; However, vanilla requires a 60% alcohol solution

(97% is too strong). To adjust for alcohol that is too strong, the solution can be diluted with

water (0% alcohol) to achieve the desired concentration. Suppose Milos is planning on

making a 12-ounce vanilla extract. How much water and alcohol should he use?

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