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Remembering that s with characterize the 1st and 2nd order interactions in polyethylene (PE) [s = exp(-500/RT) = .43 and = exp(-2000/RT) = .034 at T = 25 c] derive an RIS conformational model for PDMB, which considers sterosequence. Explain all assumptions made and compare the conformatioanl flexibility/ diversity of PDMB with that of PE, as well as indicate the most likely regular repeating conformation for each polymer and which one have the larger and why?
What fragmentation would give rise to the peak at m/z 45 in the Mass Spectrum. Loss of hydroxyl group.
benzoic acid is a white crystalline powder used as a foodpreservative. the compound contains 5.0 hydrogen 26.2 oxygen
An investment company whose stock trades based on supply and demand in the market rather than at net assets value
how many meters away is a cliff if an echo is heard one half second away? assume that sound ws traveled at 343 m/s on that day.
positron cannot penetrate matter more than a few atomic diameters but positron emission of radiotracers can be
Assume that the wet limestone process requires 1 metric ton of calcium carbonate to remove + 85.0 % of the sulfur from 4 metric tons of coal containing + 10.0 % S Assume that the sulfur product is calcium sulfate.
the heat of combustion of ethanol c2h5ohl is -1367 kjmol. a batch of sauvignon blanc wine contains 10.6 ethanol by
If I mix 11.0 g of sulfuric acid in 1 L of water and add 5.00 g of lead, what would be the equilibrium concentration of hydrogen gas if the total volume in the beaker is 2 L
Suggest chemical reactions that could be used to identify the contents of four unlabeled bottles containing solutions of the following substances: CuSO4, Al2(SO4)3, Pb(NO3)2, FeSO4.
what volume of pure oxygen gas o2 measured at 546 k and 1.00 atm is formed by complete dissociation of 0.7 mol of
What are those byproducts? to remove the byproducts from the organic phase
Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO3)2(aq) is mixed with a solution containing 0.1 g of KI(aq)/100 mL
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