Multiply ABW (alcohol by weight) by 1.25 to get ABV (alcohol by volume).
Multiply ABV by 0.8 to get ABW.
This isn't exact because different beers have different ingredients, but it will get you very close every time.
alcohol % per volume x 2 = proof. So 80 Proof booze is 40% alcohol. Divide the proof spirits by 2 to get the alcohol by volume. Alcohol by volume multiplied by .8 gives alcohol by weight. This is often the reason Canadian beer are thought to be stronger an 8% proof beer is the same as a 3.2 beer buy weight.
Converting volume into weight requires density as the conversion factor. Volume x density = weight (as long as the density is given in terms of weight per unit volume).
You cannot. The problem here is you have weight per area and you want to convert to weight per volume. You need a third dimension to the area to calculate this.
pounds are weight. gallons are volume. you see how that doesn't add up? you have to know the weight per volume of what you're measuring in order to convert it.
Pounds per cubic foot of volume and used to weight the two do not compare.
Density is mass per unit volume, and sometimes in some industries weight per unit volume is used. Weight per unit volume is also sometimes called specific weight. Weight and mass are not the same. Volume per unit mass is called specific volume, and is the reciprocal of density. It is not clear whether volume per unit weight can also be used as a measure of specific volume.
The only advantage is that alcohol is "renewable". Alcohol has less energy per unit volume and/or weight, and currently is more expensive.
To actually perform this operation, the weight of a given volume of syrup needs to be determined first. Once the weight per volume is known, then any volume of syrup can be converted into any weight, and any weight can be converted into any volume. A form of this same operation is performed daily by pilots who need to convert gallons/liters of fuel into pounds/kilos for the purpose of determining a safe weight and balance for their aircraft.
You cannot directly associate weight or volume with length. In order to convert to volume you need to know the shape and most likely another 2 dimensions. This will get you the volume. You then need to know the density, usually in grams per millilitre. and apply this. Then convert the units.
By multiplying the volume by the substance's density in tonnes per unit volume.
Some volume/hour (24 hours/1 day) = some volume/day =======================
Grams are a measure of weight, a square meter is a measure of area, and a cubic meter is a measure of volume. These are not comparable.