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At relatively low alc/vol, the alcohol percentage by weight is about 4/5 of the alc/vol (e.g., 3.2% ABW is about 4% alc/vol). [25] However, because of the miscibility of alcohol and water, the conversion factor is not constant but rather depends upon the concentration of alcohol. [citation needed]
An Ale Gill (based on the Ale gallon) and a Beer Gill (based on the Beer gallon) were different sizes until standardized as Ale / Beer gallons in 1688, Beer gallons in 1803, and Imperial gallons in 1824. Half (imp.) 284 mL: 9.61 US fl oz: 10 imp oz: 1 ⁄ 2 Imperial pint. Also called a "glass" in the UK and Ireland.
See Weight for detail of mass/weight distinction and conversion. Avoirdupois is a system of mass based on a pound of 16 ounces, while Troy weight is the system of mass where 12 troy ounces equals one troy pound.
A basic formula [4] to calculate beer strength based on the difference between the original and final SG is: = The formula below [5] is an alternate equation which provides more accurate estimates at higher alcohol percentages (it is typically used for beers above 6 or 7%).
An imperial fluid ounce is 1 ⁄ 20 of an imperial pint, 1 ⁄ 160 of an imperial gallon or exactly 28.4130625 mL. A US customary fluid ounce is 1 ⁄ 16 of a US liquid pint and 1 ⁄ 128 of a US liquid gallon or exactly 29.5735295625 mL, making it about 4.08% larger than the imperial fluid ounce. A US food labeling fluid ounce is exactly 30 mL.
Stoichiometry is not only used to balance chemical equations but also used in conversions, i.e., converting from grams to moles using molar mass as the conversion factor, or from grams to milliliters using density. For example, to find the amount of NaCl (sodium chloride) in 2.00 g, one would do the following:
An equivalent (symbol: officially equiv; [1] unofficially but often Eq [2]) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount (typically one mole) of another substance in a given chemical reaction. It is an archaic quantity that was used in chemistry and the biological sciences (see Equivalent weight § In ...
Half of a gill is a jack, or an eighth of a pint. [3] But in northern England, a quarter pint could also be called a jack or a noggin, rather than a gill, and in some areas a half pint could be called a gill, particularly for beer and milk. [4] [5] [6] In Scotland, there were additional sizes: [7] big gill = 1 + 1 ⁄ 2 gills (213.1 mL)