The student outlined the topic of their study at the beginning of the essay, clearly stating the aim of investigating how solvent polarity affected the extraction of vanillin from vanilla sugar. The topic was relevant to the IB Chemistry syllabus because it focused on the principles of polarity and solubility. The student established a clear context by providing background on vanillin and its applications, while ensuring the work remained focused on chemistry through detailed discussions of solvent properties and experimental methods. The research question was well-defined and appropriate for the available resources, effectively guiding the investigation. Overall, the student presented a thorough methodology that enabled replication of the study, having gathered sufficient primary data through practical laboratory experiments.
