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Acidic and Basic Compounds

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For questions 1-3, please refer to the attachment.

1. Indicate which hydrogens in compound II are the most acidic. Explain
2. Choose the most acidic compound from compound I-IV. Explain
3. Draw the structures for all enols of compound I
4. Nitroethane [CH3CH2NO2, pKa=8.6] is a much stronger acid than ethane[CH3CH3, pKa=60]. Explain.

For questions 5-8, please refer to the attachment.
5. The strongest base in the reaction is:
6. The weakest acid in the reaction is:
7. The enolate ion in the reaction is:
8. On the structures provided, draw arrows indicating electron flow in the generation of the intermediate C.

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