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Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
Quantities, Units and Symbols in Physical Chemistry, also known as the Green Book, is a compilation of terms and symbols widely used in the field of physical chemistry. It also includes a table of physical constants , tables listing the properties of elementary particles , chemical elements , and nuclides , and information about conversion ...
Volume fraction, which is widely used in chemistry (commonly denoted as v/v), is defined as the volume of a particular component divided by the sum of all components in the mixture when they are measured separately. For example, to make 100 mL of 50% alc/vol ethanol solution, water would be added to 50 mL of ethanol to make up exactly 100 mL.
Kinetic energy per unit mass: 1 / 2 v 2, where v is the speed (giving J/kg when v is in m/s). See also kinetic energy per unit mass of projectiles . Potential energy with respect to gravity, close to Earth, per unit mass: gh , where g is the acceleration due to gravity ( standardized as ≈9.8 m/s 2 ) and h is the height above the ...
2 US pints. The 32 oz pitcher is usually used with large 16 oz beer glasses (2 glasses per pitcher). 40 (Imp.) 1.137 litres (L) 40 imp oz: 2 imperial pints, 1 imperial quart, or a quarter of an imperial gallon. Referred to as a "40" or “40-pounder” in Canada (as in 40 Imperial ounces; also used for spirits) and a litre in the United States ...
Ice cream is the classic example where the RACC is 1/2 cup, but people more often consume more. [7] From 1996 to 2016, there was an increase in the serving sizes of food. For example, in 2016 the average muffin in America is 130 grams, but 20 years before the serving size was 85 grams. [8]
Take, for example, a can of Campbell’s chicken noodle soup. According to its nutrition facts label, a serving contains 39% of the recommended daily sodium. But a single can has 2.5 servings.
(volume or number of moles per unit time). Rate 2 is the rate of effusion for the second gas. M 1 is the molar mass of gas 1 M 2 is the molar mass of gas 2. Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight.