The student provides a well-organized background information section which explains all the relevant chemical concepts needed to understand the investigation, including what buffers are, how they work, and how buffer capacity is calculated. The methodology of the investigation is appropriate and focused on answering the research question, and includes steps to assure the relevancy and validity of the obtained results. The student also shows full awareness of safety and environmental hazards that can arise during the experiment. However, the research question could be more detailed and no ethical concerns are mentioned.
