What is the final step of the reaction procedure in the lab?

The final step of the reaction procedure in the lab often involves analyzing the product to assess the outcome of the reaction. Collecting infrared (IR) spectra is crucial because it provides information about the functional groups present in the product. By comparing the collected IR spectrum to known spectra, a chemist can confirm whether the desired reaction has taken place and identify any byproducts that may have formed.

In the context of a reaction procedure, analyzing the formed compounds through methods like IR spectroscopy is typically the last step, as it allows for the validation of the successful completion of the reaction before proceeding to any further purification or characterization. This is why collecting IR spectra is considered a logical conclusion to the experimental process, confirming that the intended products have been formed.