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Any acid with a value which is less than about -2 behaves as a strong acid. This results from the very high buffer capacity of solutions with a pH value of 1 or less and is known as the leveling effect. [3] The following are strong acids in aqueous and dimethyl sulfoxide solution.
ISO/IEC 15504 is the reference model for the maturity models (consisting of capability levels which in turn consist of the process attributes and further consist of generic practices) against which the assessors can place the evidence that they collect during their assessment, so that the assessors can give an overall determination of the organization's capabilities for delivering products ...
Cover of the European Pharmacopoeia, 11th Edition. The European Pharmacopoeia [1] (Pharmacopoeia Europaea, Ph. Eur.) is a major regional pharmacopoeia which provides common quality standards throughout the pharmaceutical industry in Europe to control the quality of medicines, and the substances used to manufacture them. [1]
The 21 proteinogenic α-amino acids found in eukaryotes, grouped according to their side chains' pK a values and charges carried at physiological pH (7.4) 2-, alpha-, or α-amino acids [21] have the generic formula H 2 NCHRCOOH in most cases, [b] where R is an organic substituent known as a "side chain". [22]
The following table gives the expected values of some commonly occurring probability distributions. The third column gives the expected values both in the form immediately given by the definition, as well as in the simplified form obtained by computation therefrom.
The relative concentrations of CO 2, H 2 CO 3, and the deprotonated forms HCO − 3 (bicarbonate) and CO 2− 3 depend on the pH. As shown in a Bjerrum plot, in neutral or slightly alkaline water (pH > 6.5), the bicarbonate form predominates (>50%) becoming the most prevalent (>95%) at the pH of seawater. In very alkaline water (pH > 10.4), the ...
The Leopard 2's MB 873 Ka-501 V12 engine German Leopard 2A4 with turret snorkel, 2010. The Leopard 2 is propelled by the MTU MB 873 Ka-501 engine. It provides 1,500 PS (1.1 MW) at 2,600 RPM and 4,700 N⋅m (3,500 lb⋅ft) of torque at 1,600–1,700 RPM. The MTU MB 873 Ka-501 is a four-stroke, 47.7 litre, 90° V-block 12-cylinder, twin ...
The Epic of Gilgamesh (/ ˈ ɡ ɪ l ɡ ə m ɛ ʃ /) [2] is an epic from ancient Mesopotamia.The literary history of Gilgamesh begins with five Sumerian poems about Gilgamesh (formerly read as Sumerian "Bilgames" [3]), king of Uruk, some of which may date back to the Third Dynasty of Ur (c. 2100 BCE). [1]