The picture is 1.)A 1B.) If DHsolution for dissolving DMSO in methanol is negative, what does this say about the energy released in mixing methanol and DMSO molecules (DHmixing) as compared to the energy required in separating solute molecules from each other (DHsolute) and separating solvent molecules from each other (DHsolvent)? What can you conclude from this about the strength of DMSO-methanol interactions? Which “wins” in this case? Enthalpy? Entropy? Both? Explain Pelure Formatody)A- A-A17AsBbCcDdEeAaBbCcDc AaBbCcDdEeAaBb( AaBbCc0derAaBbCcDdEeabe X, XA-NarmalNo SpacingHeading 1Heading 2TitleIt has been observed experimentally that the AHsolution for methanol as solvent and dimethylsulfoxide(DMSO) as solute is negative. The Structures of these compounds are given below.H.C-OS.H.H3CCH3 DMSO (dimethylsulfoxide)MethanolPlease answer these questions in order to explain this fact:What IMFS are there between methanol molecules and other methanol molecules? Draw a diagram.What IMFS are there between DMS0 molecules and other DMSO molecules?What IMFS are there between methanol molecules and DMSO molecules? Draw a diagram.

Enthalpy of a solution is the heat absorbed or evolved during its formation by mixing a solute in a…

he picture is 1.)A 1B.) If DHsolution for dissolving DMSO in methanol is negative, what does this say about the energy released in mixing methanol and DMSO molecules (DHmixing) as compared to the energy required in separating solute molecules from each other (DHsolute) and separating solvent molecules from each other (DHsolvent)? What can you conclude from this about the strength of DMSO-methanol interactions? Which “wins” in this case? Enthalpy? Entropy? Both? Explain

he picture is 1.)A 1B.) If DHsolution for dissolving DMSO in methanol is negative, what does this say about the energy released in mixing methanol and DMSO molecules (DHmixing) as compared to the energy required in separating solute molecules from each other (DHsolute) and separating solvent molecules from each other (DHsolvent)? What can you conclude from this about the strength of DMSO-methanol interactions? Which “wins” in this case? Enthalpy? Entropy? Both? Explain

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter87: Steam Distillation

Section: Chapter Questions

Problem 4P

See similar textbooks

Similar questions

9.A linear polyester was synthesized from a mixture of diacid and glycol with carboxyl to hydroxyl ratio greater than unity. A sample of the polyester (3.5 g) requires titration with 23 mL of N/50 KOH to reach a phenolphthalein end point. By vapor-pressure osmometry the molecular weight of the polymer was determined to be 12,000. Calculate the average carboxyl functionality of the polymer (that is, average number of carboxyl groups per polymer molecule).
Give the answer of this MCQ with detailed explanation in clear handwritten!
All methyl esters of long-chain aliphatic acids (e.g., methyl tetradecanoate, C13H27COOCH3) show significant fragment ions at m/z 74, 59, and 31. What are the structures of these ions? How are they formed?
1. Calculate the Coulombic (ionic) interaction energy between atoms for the C=O ∙∙∙H-N hydrogen bond in a peptide at a distance of 1.5Å in units of kJ/mol. Assume that the partial charge on O is −0.434, the partial charge on H is +0.417 and the permittivity of the protein environment is 6. coulimbic interaction energy= 27.95 kJ/mol 2. The dipole moment of an individual peptide group is approximately 3.46 D. Assuming that the dipoles line up linearly estimate the energy of interaction (in kJ.mol) of the hydrogen bond in Q1 using a dipole-dipole model. *******please answer #2**********
Carboxylic acids, including fatty acids and benzoic acids, are often present inboth municipal and industrial effluents. Describe a sample preparationcombined with GC method for identification and determination of carboxylicacids in raw wastewater at ppb (µg L-1) level. Point out a suitable samplepreparation technique and GC conditions in details and give justifications foryour choice
Q: What is the molar absorptivity of cobalt at λmax of cobalt?
determine sauturation properties of propane at the relieveimg pressure 115kpa?
There is a class of polyesters that have the general structure shown below. For example, in polyethylene terephthalate (PET) m =1. How would you expect the Tg ad Tm of these polymers to vary with m, given that the molecular weight of the chain is held constant? Give reasons for your answer. Also, assuming that you are now just considering one member of this class of polymers, say PET, how does the Tg vary with molecular weight, n.
Give clear handwritten answer on the white paper please!
Hexanoic acid was added to an immiscible biphasic solvent system, water and CCl4 at 20.0OC and the equilibrium concentrations of hexanoic acid were determined to be 3.66 g/L in H2O and 67.0 g/L in CCl4. Caluclate the distrubution coeffiecent (D2) of hexanoic acid in water with respect to CCl4.
percentage recovery of benzoic acid is 77.18%. The melting point range of crude benzoic acid = 112-119°C and the melting point range of pure benzoic acid (crystals) = 122-125. Comment on the percentage recovery of benzoic acid. Comment and compare the melting point of the crude and crystal samples
a. Are the Shockley partials glissile or sessile? Explain your answer. b. A Shockley partial, a/6[11-2] , reacts with a Frank partial, a/3[111], to yield a perfect dislocation. What is the Burgers vector of the product dislocation? c. Show that the reaction is valid.