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- The electric dipole moment of methyl benzene (toluene) is0.40 D. (a) Estimatethedipolemomentsofthethreedimethylbenzenes (xylenes). (b) Also estimate the dipole moments of (i) 1.2.3-trimethylbenzene, Ii i) 1 ,2.4-trimethylbenzene. and (ii i) 1 ,3,5-trimethylbenzene. (c) Which of the values can you be sure about?Azulene, an isomer of naphthalene, has a remarkably large dipole moment for a hydrocarbon (μ = 1.0 D). Explain, using resonance structures.I know that the answer to this question is 60, but I am struggling to understand why. Could somebody please draw this out for me 3-dimensionally or explain to me in detail why this is the case? One explanation I've heard is that it is because when the dihedral angle between the two methyl groups is 60, the molecular dipole moment between the two chlorine atoms is the smallest, therefore the answer is 60. This explanation is meaningless to me - that does not even seem to be what the question is asking. Is it a poorly-worded question? i need good explanation
- Which of the following in each pair is likely to be moresoluble in hexane, C6H14: (a) CCl4 or CaCl2, (b) benzene(C6H6) or glycerol, CH2(OH)CH(OH)CH2OH, (c) octanoicacid, CH3CH2CH2CH2CH2CH2CH2COOH, or acetic acid,CH3COOH? Explain your answer in each case.Write the structural formula of a compound with an unbranched chain of five carbon atoms that is an alkane. You do not have to consider stereochemistry. Assume for the purposes of this problem that, to be an alcohol (-ol) or an amine (-amine), the hydroxyl or amino group must be bonded to a tetrahedral (sp3 hybridized) carbon atom. If more than one structure fits the description, draw them all. Ensure alkyne bonds are drawn linearly.Determine the molecular geometry and polarity of hydroxylamine (NH2OH), formaldehyde (CH2O), and formaldoxime (H2CNOH). Justify your deductions. Is there a difference between reactants and products for both features?.
- 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.Propanal, an aldehyde with the formula CH3CH2CHO, and n-propylamine have identical molecular weights (59 amu) and identical boiling points (49 C) Which molecule do you expect to be more polar and why?Pentane has a boiling point of 36.1 C, while 1- butanol has a similar mass and has a boiling point of 117.7 C. Explain the difference, including line angle structure of each compound to show the IMFs. Please use two molecules to show IMFs.
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