The student provides a detailed and focused description of the aim of the experiment, which is to investigate the effect of increasing mass of alcohol on the enthalpy of combustion of ethanol and isopropanol. The background information is well-organized and relevant to the aim of the experiment, with clear explanations of the underlying chemical concepts and the methodology used. The methodology is highly appropriate for the topic and focused on answering the research question, including appropriate steps to assure the relevancy and validity of the obtained results. The student also shows full awareness of safety hazards, ethical concerns, and environmental issues that can arise during the experiment.
