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- Organic Chemistry Laboratory purposes: a. Why is it important to vent the separatory funnel (directed away from your face and body) after vigorous shaking? b. What is an disadvantage of using too little drying agent?What is the purpose of drying the organic layer with a drying agent like anhydrous magnesium sulfate?Write the Separation of heavy metals using solvent extraction technique.
- After separating layers in an extraction, it is necessary to “dry” the organic layer with a substance that absorbs water. Explain why this is necessary.Give the examples of emulsion prepare by these method:- 1)dry gum method 2)wet gum method 3)bottle gum methodClassify these solvents as either protic or aprotic solvents.
- What is the most common filter paper used in the laboratory? A. Cellulose fiber filter B. Glass fiber filter C. Membrane filter (polytetrafluoroethylene, cellulose nitrate)Which extraction solvent, when mixed with an aqueous solution of NaHCO3, would form an upper layer when mixed in a separatory funnel? Choose all that apply. p-xylene ethylene glycol ethanol diethyl ether methylene chlorideWhy is it required to add drying agent like sodium sulphate to the organic layer which may contain only a neutral compound? Explain