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Pentaethylenehexamine (abbreviated PEHA) is an organic amine. It is composed of five ethylene groups-CH 2 CH 2 - joined together in a chain by four secondary amine groups (-NH-) and terminated on each end by primary amine groups (-NH 2). Pentaethylenehexamine is a hexadentate ligand, owing to the Lewis basicity of the six amine groups. [3]
Molecular weight (M.W.) (for molecular compounds) and formula weight (F.W.) (for non-molecular compounds), are older terms for what is now more correctly called the relative molar mass (M r). [8] This is a dimensionless quantity (i.e., a pure number, without units) equal to the molar mass divided by the molar mass constant .
Chemical formula. C 8 H 23 N 5: Molar mass: 189.307 g·mol −1 Hazards ... Pentaethylenehexamine Triethylenetetramine: Except where otherwise noted, ...
Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (in commercial contexts often called percentage by weight, abbreviated wt.% or % w/w; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size ; mole fraction (percentage by moles , mol%) and volume fraction ...
The mass average molar mass (often loosely termed weight average molar mass) is another way of describing the molar mass of a polymer. Some properties are dependent on molecular size, so a larger molecule will have a larger contribution than a smaller molecule.
Molar mass: 111.100 g·mol −1 Melting point: ... N-Methylmaleimide (NMM) is a naturally-occurring [citation needed] organic compound with the formula of C 5 H 5 NO 2.
Formula of glass component Desired concentration of glass component, wt% Molar mass of glass component, g/mol Batch component Formula of batch component Molar mass of batch component, g/mol SiO 2: 67 60.0843 Sand SiO 2: 60.0843 Na 2 O 12 61.9789 Trona: Na 3 H(CO 3) 2 *2H 2 O 226.0262 CaO 10 56.0774 Lime CaCO 3: 100.0872 Al 2 O 3: 5 101.9613 ...
The Dumas method of molecular weight determination was historically a procedure used to determine the molecular weight of an unknown volatile substance. [ 1 ] [ 2 ] The method was designed by the French chemist Jean Baptiste André Dumas , after whom the procedure is now named.