IB Chemistry HL IA Example 1 (21/24)
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This Chemistry HL IA scored 21/24 (Grade 7) and was created for the November 2022 session. This IA is up to date with the newest 2016 IB Chemistry HL syllabus.
Research Question: What is the effect of citric (weak) and hydrochloric (strong) acid catalysts of various concentrations (0.40M, 0.80M, 1.20M, 1.60M and 2.00M) on the rate of iodination of 4.00M propanone (2.00×10−3±0.003𝑑𝑚3) using 0.005M Lugol's Iodine Solution (2.00×10−3±0.003𝑑𝑚3)?
This resource is a fantastic exemplar of the Chemistry HL Internal Assessment and can be used as a model for both the structure and the level of investigation and analysis required to achieve a strong Grade 7 in the task.
