Essay Prompt 2 Ethanol in wine (due at the beginning of lab in the week of 3/13-

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Essay Prompt 2 Ethanol in wine (due at the beginning of lab in the week of 3/13-17) Advertisements for a new instrument claims that it can accurately measure the ethanol content of wine by evidence would you like to see? if the is fraudulent this what type of Provide details of investigative design There is no specific length requirement for these essays. To include sufficient detail, most students will require 200-500 words essay be attached as a word or google docs file and may not be typed into the comments field.

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Note that we can't directly involve density with concentration, since most wines will age, and will convert alcohol to aldehydes, which both have lower density than water.

So if we relate "low density" to alcohols, we are running the risk of accepting acetone (the oxidized state of ethanol) as a premium product (i.e. the ethanol, or alcohol content in the wine)

The acetone will taste acidic and will not favor a nice "flavor" and "aroma" in the bottle.

We could also use colorimetric techniques, in which we relate specific color of wine for "dilution". Note that this dilution is both valid: for ethanol and water.

Then, relying mainly in density is not a 100% error proof technique.

Also, note that in real life, we assume there is mainly ethanol, so using a density equipment (called hydrometer) will be the typical / fast technique used.

For specific values, analytical chemistry is used, such as titration, gravimetric and other techniques which will give a more reliable numeric value

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