What will happen when two objects with equal mass collide?
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Ответ:
a. 2. The reagents were added to a round bottom flask prior to the reaction being heated under reflux.
b. 3. The solution of benzoic acid and methanol was heated in a steam bath
c. 4. The reaction mix was washed with sodium carbonate solution.
d. 1. Magnesium sulfate is added to the dichloromethane layer before the solvent is distilled off.
Explanation:
Fisher esterification is an equilibrium process. There are unreacted carboxylic acids in the reaction mix which are weak acids and they neutralize into aqueous solution. Magnesium sulfate is drying agent there water should be removed from dichloromethane solution before the solvent is distilled off.