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Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula CH 3 CH 2 OH. It is an alcohol, with its formula also written as C 2 H 5 OH, C 2 H 6 O or EtOH, where Et stands for ethyl. Ethanol is a volatile, flammable, colorless liquid with a characteristic wine-like ...
It follows, therefore, that 1000th of a litre, known as one millilitre (1 mL), of water has a mass of about 1 g; 1000 litres of water has a mass of about 1000 kg (1 tonne or megagram). This relationship holds because the gram was originally defined as the mass of 1 mL of water; however, this definition was abandoned in 1799 because the density ...
Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .
A 1 inch tall uranium fuel pellet is equivalent to about 1 ton of coal, 120 gallons of crude oil, or 17,000 cubic feet of natural gas. [15] In light-water reactors , 1 kg of natural uranium – following a corresponding enrichment and used for power generation– is equivalent to the energy content of nearly 10,000 kg of mineral oil or 14,000 ...
One tablespoonful (5 grams) of dry unsweetened cocoa powder has 12.1 mg of caffeine [97] and a 25-g single serving of dark chocolate has 22.4 mg of caffeine. [98] Although a single 7 oz. (200 ml) serving of coffee may contain 80–175 mg, [ 99 ] studies have shown psychoactive effects in caffeine doses as low as 9 mg, and a dose as low as 12.5 ...
[10] The two definitions of specific impulse are proportional to one another, and related to each other by: =, where I sp {\displaystyle I_{\text{sp}}} is the specific impulse in seconds, v e {\displaystyle v_{\text{e}}} is the specific impulse measured in m/s , which is the same as the effective exhaust velocity measured in m/s (or ft/s if g ...