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1.5 ounces of 80- proof alcohol is the equivalent of one drink, and this drink contains 3-ounces of 80- proof alcohol hope this helps

Proof content depicts the alcoholic level in a drink present in the volume. Three ounces of 80-proof vodka is equivalent to 1.5 - 1.2 ounces of pure alcohol.

 

What is proof?

Proof in alcoholic beverages is the double amount of ethanol content present by volume. For example, 80-proof vodka means that it contains 40% pure alcohol.

The three ounces of 80-proof vodka will contain 1.2 ounces [tex](\rm 3\times 0.4)[/tex] of pure vodka or alcohol amount by volume.

Therefore, 1.5 ounces of pure alcohol is present in the 80-proof vodka.

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