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Question: questions answer the following questions be as complete as possible...

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Questions: Answer the following questions. Be as complete as possible, and always explain your reasoning 1. Draw the chemical structure of 9-fluorenone and use it to answer the following solubility-based questions a) Circle and label all regions of the molecule that exhibit non-polar behavior b) These non-polar regions interact with solvent molecules with what types of intermolecular forces (list all that apply): hydrogen bonding, dipole-dipole, dipole-induced dipole, or induced dipole-induced dipole (London dispersion)? c) Circle and label the region of the molecule that exhibits polar behavior d) This polar region interacts with solvent molecules with what types of intermolecular forces (list all that apply): hydrogen bonding, dipole-dipole, dipole-induced dipole, or induced dipole- induced dipole (London dispersion)? e) Based on the answers to parts (a)-(d), predict whether 9-fluorenone will be more soluble in methylene chloride (a more non-polar organic solvent) or water (a very polar solvent) Explain your answer f) Was your experimental partition coefficent consistent with the prediction in part (e)? 2. What is the purpose of the sodium sulfate? Why did you rinse the sodium sulfate with ar additional portion of methylene chloride? 3. Even though the procedure called for you to do so, organic chemists typically do not weigh sodium sulfate when it is used for this purpose. The proper amount is estimated instead a) Why is it NOT necessary to weigh accurately the sodium sulfate? b) Even so, it is important to use enough without using way too much. What problem(s) would be associated with using too little or too much sodium sulfate? List at least one potential problem for each scenario.
4. Consider the microscale extraction procedure that you performed, and the manipulations involving conical vials, pipets, filter pipets, and heater blocks a) Discuss briefly any sources of error that may impact significantly your experimental results and partition coefficient calculation b) For one of the specific sources of error that you identified in part (a), indicate the resulting effect (higher or lower) on the calculated partition coefficient value 5. Ethylene chloride, CICH2CH2CI (98.96 g/mol, density 1.26 g/mL, bp 83 °C), is an organic solvent with polarity similar to methylene chloride, and is also not miscible with water a) If substituted for methylene chloride in this partition coefficient experiment, would ethylene chloride form the top or bottom layer? b) Provide an explanation, using appropriate data to support your answer c) Despite the similarities, methylene chloride is superior to ethylene chloride as an extraction solvent. Why?
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