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Phosphoric acid (orthophosphoric acid, monophosphoric acid or phosphoric(V) acid) is a colorless, odorless phosphorus-containing solid, and inorganic compound with the chemical formula H 3 P O 4. It is commonly encountered as an 85% aqueous solution , which is a colourless, odourless, and non- volatile syrupy liquid.
Phosphoric acids and phosphates. Appearance. Pyrophosphoric acid. In chemistry, a phosphoric acid, in the general sense, is a phosphorus oxoacid in which each phosphorus (P) atom is in the oxidation state +5, and is bonded to four oxygen (O) atoms, one of them through a double bond, arranged as the corners of a tetrahedron.
Founders. Phi Beta Sigma founders: A. Langston Taylor, (first row, center), Leonard F. Morse (first row; third from right) and Charles I. Brown (first row; third from left) with charter members of Phi Beta Sigma; Alpha Chapter in 1914. A. Langston Taylor, Esq. (January 29, 1890 - August 8, 1953) was the first international president of Phi Beta ...
Sigma Brother Charles R. Taylor (On Arizona Cleaver & the organization of Zeta Phi Beta) The newly established Zeta Phi Beta sorority, Inc. was given a formal introduction at the Whitelaw Hotel by their Sigma counterparts, Charles R. and A. Langston Taylor. As National Executive Secretary of Phi Beta Sigma, Charles Taylor wrote to all Sigma chapters requesting they establish Zeta chapters at ...
Sigma Pi Phi (ΣΠΦ), also known as The Boulé, is an African American professional fraternity. Founded in Philadelphia , Pennsylvania , in 1904, it is arguably the oldest fraternity for African Americans , between it and Alpha Phi Alpha founded at Cornell University.
Sigma Phi Beta was a national group with ten chapters. Founded on November 1, 1920, at New York University as Sigma Sigma Omicron, in July 1927 its name was changed to Sigma Phi Beta. [4] Additionally, Phi Alpha Chi, formed at the University of California at Berkeley, was founded as The Tanewah in 1919. In 1926, that group renamed itself as the ...
In 1934, the fraternity became merger discussions with Phi Sigma Pi, an education honor society with 18 chapters and 500 members. [6] The Ph Sigma Pi chapter at Northwestern Oklahoma State University voted to join Kappa Phi Kappa in June 1934. [6] By 1957, Kappa Phi Kappa had 37 active chapters, with 28 inactive, for a total of 65 chapters ...
The Phi Beta Kappa Society (ΦΒΚ) [a] is the oldest academic honor society in the United States. [2][3] It was founded at the College of William & Mary in Virginia, in December 1776. [4] Phi Beta Kappa aims to promote and advocate excellence in the liberal arts and sciences, and to induct outstanding students of arts and sciences at select ...