Explain whether it is absolutely necessary to add sodium chloride if a student decided to use methylene chloride (also known as dichloromethane) instead of 1-propanol to extract caffeine in the "Extraction of Caffeine from Tea Leaves"experiment. Limit your answer to one sentence. Please clearly indicate whether it is absolutely necessary OR not necessary to add salt in your response before your explanation. c. What is the purpose of washing the dibenzalacetone product with saturated sodium bicarbonate in the "Synthesis of Dibenzalacetone" experiment? Limit your answer to one sentence. d. What is the purpose of the 95%ethanol in the "Synthesis of Dibenzalacetone" experiment? Limit your answer to one sentence. e. Explain how one can tell whether enough drying agent was added in an organic chemistry experiment based on a condensed phase IR spectrum. Be specific in your reasoning. Limit your explanation to a maximum of 2 sentences.
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