Which of the following steps should be taken before starting an experiment in the lab?

Taking the time to review the experimental procedure and check safety data is crucial before starting any experiment in the laboratory. This step ensures that you are familiar with the methods and techniques you will be using, thereby minimizing the risk of errors during the experiment. Additionally, understanding the safety data, which includes hazards associated with the chemicals and procedures you will be working with, allows you to take necessary precautions to protect yourself and others.

This preparation helps identify any potential hazards, the appropriate personal protective equipment (PPE) needed, and emergency procedures that may be required in case of an accident. Familiarity with the experimental procedure can also facilitate a smoother workflow, allowing you to anticipate challenges and handle them proactively. Proper preparation sets the foundation for a safe and successful laboratory experience, highlighting the importance of thorough planning and safety consciousness in organic chemistry practices.