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Discuss the trend in predicting boiling points of:
1. Butane
2. Acetone
3. Acetic Acid
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- a). ) Write the chemical formula for each compound. b) Order the compounds from lowest to highest boiling point and explain your reasoning in great detail. Use the concept of London dispersion forces to rationalize your answer clearly explaining what such forces are. c) Of the atoms contained in the molecules above, order them in sequence from least to most polarizable and clearly explain your reasoning. d) Which molecule do you think is the most viscous and why? e) In the presence of acetic acid, which molecules above have the potential to engage in hydrogen bonding and why?Explain briefly and clearly the following concepts, taking as reference the molecule of n-butane and the corresponding drawings or illustrations. See pages 149-152 of the book Organic Chemistry, sixth edition (J. G. Smith). 1. Potential energy of a conformation. 2. Dihedral angle (in chemical terms, nothing to do with planes) in relation to a rotatable bond for the molecule of interest. Present an example to illustrate the concept 3. What are the van der Waals interaction forces in a conformation? Then provide an illustration: 4. What is steric hindrance in a conformation? Then draw a picture to illustrate the concept? 5. What is the torsional stress of a conformation? Then draw a picture to illustrate the concept? 6. Describe 1,3-diaxial interaction and illustrate with a specific example.Ammonia. NH3 has a higher boiling point in comparison to phosphate trihydride,PH3.Explain this phenomenon
- 1.Dihedral angle (in chemical terms, nothing to do with planes) in relation to a rotatable bond for themolecule of interest. Present an example to illustrate the concept 2.What are the van der Waals interaction forces in a conformation? Then provide an illustration:please write the Structure Activity Relationship (SAR) of Bisoprolol and Esmolol? Please write at your own words.7 Ethanoic acid has a melting point of 17 °C, ethanamide has a melting point of 81 °C, and ethanal has a melting point of -125 °C. Rationalize the differences in melting point between these three compounds.
- I ONLY NEED THE ANSWERS OF QUESTIONS 4, 5 and 6!! Explain briefly and clearly the following concepts, taking as reference the molecule of n-butane and the corresponding drawings or illustrations. 1. Potential energy of a conformation. 2. Dihedral angle (in chemical terms, nothing to do with planes) in relation to a rotatable bond for the molecule of interest. Present an example to illustrate the concept 3. What are the van der Waals interaction forces in a conformation? Then provide an illustration: 4. What is steric hindrance in a conformation? Then draw a picture to illustrate the concept? 5. What is the torsional stress of a conformation? Then draw a picture to illustrate the concept? 6. Describe 1,3-diaxial interaction and illustrate with a specific example.Which compound would you expect to have the higher melting point, propane or cyclopropane? Explain your answer.Some natural proteins are rich in disulfide bonds, and their mechanical properties (tensile strength, viscosity, hardness, etc.) are correlated with the degree of disulfide bonding. (a) Glutenin, a wheat protein rich in disulfide bonds, is responsible for the cohesive and elastic character of dough made from wheat flour. Similarly, the hard, tough nature oftortoise shell is due to the extensive disulfide bonding in its α-keratin. What is the molecular basis for the correlation between disulfide-bond content and mechanical properties of the protein?(b) Most globular proteins are denatured and lose their activity when briefly heated to 65 °C. However, globular proteins that contain multiple disulfide bonds often must be heated longer at higher temperatures to denature them. One such protein is bovine pancreatic trypsin inhibitor (BPTI), which has 58 amino acid residues in a single chain andcontains three disulfide bonds. On cooling a solution of denatured BPTI, the activity of the…
- Analyze the HNMR and CNMR data attached to prove that the compound is C8H8O3 (vanillin).Analyze the CNMR for the molecular formula C8H8O3 (vanillin). Be very specific in explaining why the CNMR data proves that the structure is indeed vanillin.Solubility- hexachlorobenzene Q1)Using the Lewis structures of the molecule and water, identify and label areas of intermolecular attraction. ▪More than one water molecule should be shown ▪Label the type of IM forces present b)Using the Lewis structures of the molecule and a nonpolar solvent (e.g., hexane), identify and label areas of intermolecular attraction. c)explain the solubility (or lack thereof) of your molecule in water. When available, use solubility data (at the same temperature) to support your explanation. d)explain the solubility (or lack thereof) of your molecule in nonpolar solvents. When available, use solubility data (at the same temperature) to support your explanation. e)when dissolved in water, qualitatively discuss whether the molecule is a strong electrolyte, weak electrolyte, or nonelectrolyte. Please answer very soon will give rating surely All questions answers needed
