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Explain briefly a proper technique to use burette.
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- What physical property determines which solvent sinks to the bottom when performing a liquid-liquid extraction? A. Refractive Index B. Solubility C. Density D. Boiling PointBriefly, discuss reflux and why it is commonly used in organic chemistry.Many operations in the chemical laboratory use “salting out” in the procedure. What do the purpose of this technique?
- What substance is used to help dry your sample rapidly?Discuss extraction process using soxhlet apparatus.Please clearly label the following where they appear: pinacol, sulfuric acid, water, pinacolone, direction of water flow, keck clips, metal clamps, thermometer positioning, heat source, and list any hazards or important notes for this set up.
- Q.2: Write the Separation of heavy metals using solvent extraction technique.In a liquid – liquid extraction, what is preferable? Three extractions with a small volume or one extraction with a large volume. Explain briefly.Which is the most appropriate way to dispense liquid using a dropper (vertical, 45° angle, or horizontal? Justify your answer