calculatorcomes to the rescue if you need to quickly check the weight of1 moleof any element or chemical compound and you are unable to use theperiodic table. Simply selectone by onethe elements from the list and give the number of atoms in their molecular formula to get themolar massin ...
Molecular weight, mass of a molecule of a substance, based on 12 as the atomic weight of carbon-12. It is calculated in practice by summing the atomic weights of the atoms making up the substance’s molecular formula. The molecular weight of a hydrogen m
Because of the distribution of chain sizes it is common to use moments of the distribution to specify the molar mass of a resin. For example, the number average molar mass, Mn, is the total mass of polymer divided by the number of polymeric chains (i.e., the average molecular weight)....
The Curie temperature of pure magnetite occurs at 580 °C ± 2 °C [397]. Substitution of FeII and/or FeIII by Al3+, Cr3+, Ti4+, Mg2+, Ni2+, Ca2+, Mn2+, and other ions which are common in natural magnetites, lowers the Curie temperature from 580 °C for 100 mass % Fe3O4...
The Pleistocene presence of the genus Homo in continental Southeast Asia is primarily evidenced by a sparse stone tool record and rare human remains. Here we report a Middle Pleistocene hominin specimen from Laos, with the discovery of a molar from the T
The chemical properties ofBF3include: The equation for the formal charge is:FC=V−N−B2 FC=V−N−B2FC=3−0−62FC=0 FC=V−N−B2FC=7−6−22FC=0 The molar mass of boron trifluoride is 67.81gmol. That number is the sum of the molar mass of boron (10.81gmol) and ...
which include some of the largest known Mesozoic mammals40,41. Body mass inPriacodoncan be estimated by reference to regressions based on dentary length42, estimated skull length43, and postcranial elements2,44. These estimates range from 40.9–60.6 g inP.fruitaensis, to 111–175 g inP.fero...
precipitation, with additionally needed alkalinity coming from porewater (that is, a binary mixing model). Assuming thatδ13C of methyl sulphides and carbon isotope fractionation during methanogenesis are –30‰ and –60‰ (ref.44), respectively, mass balance consideration requires thatδ13C of ...
We describe a method of partial moments devised for accurate simulation of the time/conversion evolution of polymer composition and molar mass. Expressions were derived that enable rigorous evaluation of the complete molar mass and composition distribution for shorter chain lengths (e.g., degree of ...
Theoretical analysis (canonical partition function, conformational analysis) examines how the presence of different polar functional groups, some of which are sterically shielded from the steroid skeleton of bile salts (surfactant), affect the symmetry of the function gE of the binary mixed micelle of...