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It is on a grander and more majestic scale than the earlier Op. 4 concertos, written for the more intimate single keyboard chamber organ. The first and second movements together form a single chaconne over a ground bass, over which the organ plays a series of simple but arresting variations. There is a chaconne-like bass in the following largo.
The pH scale is by far the most commonly used acidity function, and is ideal for dilute aqueous solutions. Other acidity functions have been proposed for different environments, most notably the Hammett acidity function, H 0, [3] for superacid media and its modified version H − for superbasic media.
The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]
In music, Op. 7 stands for Opus number 7. Compositions that are assigned this number include: Barber – Music for a Scene from Shelley Beethoven – Piano Sonata No. 4 ...
André Gedalge, dedicatee of the Octet, c. 1908. Following the completion of his Second Violin Sonata in 1899, composition of the Octet occupied Enescu for a year and a half.
This page was last edited on 19 September 2008, at 17:42 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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The Hammett acidity function (H 0) is a measure of acidity that is used for very concentrated solutions of strong acids, including superacids.It was proposed by the physical organic chemist Louis Plack Hammett [1] [2] and is the best-known acidity function used to extend the measure of Brønsted–Lowry acidity beyond the dilute aqueous solutions for which the pH scale is useful.
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