IB Chemistry HL IA Example 1 (21/24)
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 (2.00ร10โ3ยฑ0.003๐๐3) using 0.005M Lugol's Iodine Solution (2.00ร10โ3ยฑ0.003๐๐3)?
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.