355mL*0.05 = 17.75mL 5.0% ABV times 355 ml of total liquid volume = 17.75ml of pure ethyl alcohol (ethanol).
If it is 3.9% abv, then 3.9% of any volume is alcohol:
380 ml × 3.9% = 380 ml × 3.9/100 = 14.82 ml alcohol.
5% of 355 ml = 5/100 × 355 ml = 17.75 ml of alcohol (= 1.775 units of alcohol, 1 unit = 10 ml)
If you have a 70cl bottle of whisky which is "40% alcohol by volume" it contains 28cl of alcohol.
51% typically means 51% by volume. So if you have a 100ml bottle of 51% alcohol, you have 51ml of pure alcohol inside the bottle, diluted to a final solution volume of 100ml.
50% alcohol Proof ÷ 2 = % alcohol
A bottle will usually state it's alcohol by volume (ABV) as "proof" . Proof is double what the percentage of alcohol is. So, a bottle of 60 proof spirits would be 30% alcohol by volume. The highest percentage alcohol in a spirit that I've seen is 151 proof, and that was a bottle of rum.
40% of 750ml = (40/100) * 750 = 300 mL.
It is the percentage of alcohol in an alcoholic beverage, expressed volumetrically. If you have a 1-liter bottle of liquor whose ABV is 40 percent, the bottle contains 400 ml of pure ethanol.
If the concentration of alcohol and water solution is 25 percent alcohol by volume, the volume of alcohol in a 200 solution is 50.
It is prepared from a special denatured alcohol solution and contains approximately 70 percent by volume of pure, concentrated ethanol (ethyl alcohol) or isopropanol (isopropyl alcohol), so approximately 35 mL in a 50mL bottle.
The volume of alcohol is 110 mL.
Alcohol by Volume'
60ml.