tion to the test tube and note any color change. Would you expect a color change? Dispose of chemicals used in the test in the designated receptacles. Before beginning this experiment in the laboratory, you should be able to answer the following questions: What are esters? What is their general structure? What is the role of the mineral acids in the esterification process? From what substances can esters be prepared? What is one general physical property of esters? Describe a test for phenols. What is the carboxylic acid group? What is the purpose of recrystallization?