WebMar 16, 2024 · Raman spectroscopy is an alternative way to get information about the infrared transitions within a molecule. In order for a vibrational transition to be Raman active, the molecule must undergo a change in polarizability during the vibration. Polarizability refers to the ease of distorting electrons from their original position. WebAug 28, 2024 · Calculate the M W for a polymer sample comprising of 9 moles of polymer molecules having molecular weight of 30.000 g/mol and 5 moles of polymer molecules having molecular weight of 50.000 g/mol. Answer: Z-average molecular weight (M Z) The Z-average molecular weight (M z) is measured in some sedimentation equilibrium …
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WebThe question asks, "An inactive tetramer of IN is expected to have approximately what molecular weight?" The answer is 128 kDA, with the other choices being 12, 32, and 64 … WebSep 12, 2024 · In polymer chemistry, the width of the distribution of molecular weights is described by the dispersity (Ð, also called, in older texts, the polydispersity or the polydispersity index, PDI). The dispersity of a polymer sample if often between 1 and 2 (although it can be even higher than 2). The closer it is to 1, the narrower the distribution. i picked the wrong one
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WebHigh molecular weight (MW) polymer has a higher viscosifying power and higher permeability reduction factor than low molecular weight polymer. For the same amount of polymer injected, the polymer with higher molecular weight would result in a higher recovery. ... and hydroperoxides to form inactive compounds, and those that decompose these ... Webpermeation chromatography [13]. The weight-average molecular weight (Mw) and the polydispersity index of the SI and PETI-SI samples are shown in Table 1 and Table 2, respectively. The differences in the molecular weight distribution per sample, are more easily discerned when weight averages are compared. Webapproximate molecular weight of 50,000 and conver- sion to the active enzyme causes reduction in molecular weight to 43,000. Conversion of this active enzyme to an active but … i picked the wrong guy