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- If you did not completely dry the Erlenmeyer flask before weighing the result, how would that affect the final results? Be specific in your answer.1. Cite one factor that affects percent yield during recrystalization. 2. Discuss the importance of solvent-solvent partition in separating mixtures.Column Chromatography of 9-Fluorenone Experiment Introduction: Column chromatography is an important chromatography method used to separate and purify organic compounds. Column chromatography is typically used to separate impurities and purify products from chemical reactions, including separating unused starting material from products. Column chromatography is very similar to Thin Layer Chromatography (TLC) because it relies on a solid stationary phase (absorbent) and liquid mobile phase (eluant) to separate organic compounds based on their different polarities. In column chromatography, the stationary phase is a solid absorbent, typically silica gel or alumina, with a liquid coating packed into a glass column. The stationary phase is typically very polar. An eluant (mobile phase) solvent travels down the column and the separation occurs as the organic compounds enter into equilibria with the stationary and mobile phases. The polarity of the eluant may be adjusted from non-polar…
- A sample of naphthalene is contamined with a small amount of anthracene. The melting point would be about the sample as the pure sample higher and the range broader than the pure sample lower and the range more narrow than the pure sample lower and the range broader than the pure sample higher and the range more narrow than the pure samplea.) What is the linear equation for the calibration plot? b.) What is the amount of sulfate in the water sample?What is different about steam distillation
- Acetone and isopropyl alcohol are generally not suitable for use in extraction, but are frequently used as recrystallization solvents. Explain6. Why is it dangerous to attempt a distillation in a completely closed systemWhy is the glucose assay one of the most common analytical test performed in clinical chemistry.