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After 60 minutes have elapsed, the chemist allows the reaction to cool to room temperature and adds aqueous sodium bicarbonate until the bubbling stops. The contents of the reaction vessel are then transferred to a separatory funnel, and dichloromethane (also known as methylene chloride) is used to extract the organic product. After shaking and venting the separatory funnel, the lower layer (approximately 5 mL in volume) is drained into an Erlenmeyer flask. To the Erlenmeyer flask, magnesium sulfate (drying agent) (MgSO4) is added. Upon swirling the flask, the chemist notices a white clump of MgSO4 surrounded by a large amount of loosely held white particles of MgSO4. The chemist filters the drying agent and then transfers the filtrate into a clean, pre-weighed Erlenmeyer flask. The Erlenmeyer flask is heated to 80°C (using a reliable thermometer) in a water bath for 45 minutes, at which point the chemist notices that a liquid is still present in the flask.

          After 60 minutes have elapsed, the chemist allows the reaction to cool to room temperature and adds aqueous sodium bicarbonate until the bubbling stops. The contents of the reaction vessel are then transferred to a separatory funnel, and dichloromethane (also known as methylene chloride) is used to extract the organic product. After shaking and venting the separatory funnel, the lower layer (approximately 5 mL in volume) is drained into an Erlenmeyer flask. To the Erlenmeyer flask, magnesium sulfate (drying agent) (MgSO4) is added. Upon swirling the flask, the chemist notices a white clump of MgSO4 surrounded by a large amount of loosely held white particles of MgSO4. The chemist filters the drying agent and then transfers the filtrate into a clean, pre-weighed Erlenmeyer flask. The Erlenmeyer flask is heated to 80°C (using a reliable thermometer) in a water bath for 45 minutes, at which point the chemist notices that a liquid is still present in the flask.

Added by John M.

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