In a polymer sample 30 of molecules

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WebRubber elasticity refers to a property of crosslinked rubber: it can be stretched by up to a factor of 10 from its original length and, when released, returns very nearly to its original length. This can be repeated many times with no apparent degradation to the rubber. Rubber is a member of a larger class of materials called elastomers and it is difficult to … WebIn a polymer sample 30% of molecules have a molecular mass of 20,000, 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer? 11 (1) 40,300 (2) 30,600 (3) 43,333 (4) 50,400 Which of the following polymers is prepared by Solution Verified by Toppr Was this answer helpful? 0 0 Similar questions

In a polymer sample 30% of molecules have a molecular …

WebJan 1, 2013 · The properties of the polymer are determined primarily by the molecules with a molecular weight of 10,000 that makes up 95 % of the weight of the mixture. The highest % fraction of molecular weight of molecule will contribute the most toward the bulk property. WebApr 15, 2024 · The homemade equipment consisted of a sample chamber of reduced depth that acted as a quasi-confinement for the solvent and polymer molecules. ... North Wales, … small handheld games to play

In a polymer sample, 30% of molecules have a molecular mass of …

WebChemistry questions and answers Calculate the Mn, Mw, Mz and the molecular weight distribution for a polymer sample containing equal numbers of molecules of the following … WebApr 15, 2024 · Consequently, there is a clear need for the development of new polymer processing techniques in order to precisely manipulate these materials in bulk, in solutions and especially on surfaces. Many of these techniques may rely on ordering processes such as polymer self-assembly [ 28, 29, 30, 31, 32, 33, 34] or crystallization [ 33, 35, 36, 37, 38 ]. WebNov 17, 2024 · It is valid for all low molecular-weight compounds. In contrast, a polymer comprises molecules of different molecular weights, and its molecular weight is expressed in terms of the ‘average’ value. For example, ethylene has a fixed molecular weight 28. ... Assume that there is n number of molecules in a polymer sample, and n 1 of them have ... small hand held generator

Polymer Molecule - an overview ScienceDirect Topics

WebApr 3, 2024 · polymer, any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples of simpler chemical units … WebClick here👆to get an answer to your question ️ A sample of polymer contains 30% molecules with molecular mass 20,000 , 40% with molecular mass 30,000 and 30% with molecular mass 60,000 . What is the number average molecular mass of the polymer? small hand held electric hedge trimmersWebIn a polymer sample, 30% of molecules have a molecular mass of 20,000, 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer ? 1784 90 … small handheld glass bong

"Webdistribution of a polymer, and is defined by: Polydispersity index = Mw Mn The larger the polydispersity index, the broader the molecular weight. A monodisperse polymer where all the chain lengths are equal (such as a protein) has an Mw/Mn = 1. The best controlled synthetic polymers (narrow polymers used for calibrations) have Mw/Mn of 1.02 to ... " - In a polymer sample 30 of molecules

In a polymer sample 30 of molecules

WebMeaning. A large, organic molecule such as carbohydrates, lipids, proteins, and nucleic acids. A molecule that is a building block for larger molecules (polymers). For example, an amino acid acts as the building blocks for proteins. A large molecule made of repeating … WebIn a polymer sample, 30% of molecules have a molecular mass of 20,000, 40% have 30,000, and the rest- 60,000. What is the weight average molecular mass= of the polymer? (1) 40,300 (2) 30,600 (3) 43,333 (4) 50,400 Polymers Chemistry Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 ...

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WebApr 12, 2024 · From the color of items on the map, the recent research trend of wax inhibitors is connected strongly with nanoparticles and with the pour point depressants … Web.A sample of polymer is composed of a series of fractions of different-sized molecules. Calculate the number average molecular weight (M n ), the weight average molecular weight (M w) and polydispersity index (PDI) of this polymer sample Fraction / Weight Fraction (w i) / Molecular Weight A / 0.1 / 100,000 B / 0.2 / 200,000 C / 0.4 / 400,000

WebReflects both the polymer chain itself and the solvating molecules in inner and outer spheres 3) 4) a) b) Figure 2.1 in Stevens Hydrodynamic Volume is related to an Expansion Factor, α α = 1 is the value for the “non-expanded” polymer in the “ideal” statistical coil having the smallest possible size WebJun 11, 2024 · Calculate the average molecular mass of a polymer sample in which 30% molecules have a molecular mass 20,000, 40% have 30,000, and rest have 60,000. Strategy: Work out number average molecular mass (¯¯¯¯¯ ¯M n) ( M n ¯) as well as weight average molecular mass (¯¯¯¯¯ ¯M w) ( M w ¯) class-12 polymers 1 Answer 0 votes

WebIn a polymer sample, $30 \%$ of molecules have a molecular mass of $20,000,40 \%$ have 30,000 and the rest $60,000 .$ What is the weight average molecular mass of the …

WebMar 29, 2024 · In a polymer sample, 30% molecules have molecular mass 20000, 40% have molecular mass 30000 and the rest 30% have 60000. Calculate their number average and m... In a polymer …

WebSep 12, 2024 · Solvent containing a sample of polymer is pumped through a specialized chromatography column capable of separating molecules based on their size differences. … small hand held heat gunWebDec 31, 2024 · The chemical structure of the polymer, the molecular weight, the polymolecularity index, the rigidity and the configuration of the chains, the lateral groups present along the chains as well as... small hand held grass trimmerhttp://adhunter.people.ysu.edu/Teaching/Chem5861/Chemistry5861.Notes.2.MolecWeightsPolymerSoln.pdf song wednesday\u0027s childWebA sample of polymer contains 30% molecules with molecular mass 20,000, 40% with molecular mass 30,000 and 30% with molecular mass 60,000. What is the number … song website freeWebSep 10, 2024 · A method for measuring the degree of aggregation of a protein or a polypeptide in a liquid sample, the method comprising the steps of combining an amount of a fluorophore molecule with the aggregated protein or polypeptide in the liquid sample; and measuring the fluorescence polarization value of the combination to determine the … song we can work it outWebThe work presented in this thesis describes an innovative approach for biological sample preparation in a micro-volume syringe based on electrokinetic separation. For the first time, the embedded stainless steel syringe needle and plunger served as electrodes and the syringe barrel served as a separation channel. The advantages of doing this in a syringe is … small hand held grindersWebIn a polymer sample 30% of molecules have a molecular mass of 20,000, 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer? A 40,300 … small hand held harp