Carry out a practical investigation into a substance present in a consumer product using quantitative analysis
You'll carry out a practical lab investigation where you test a real consumer product to find out how much of a particular substance it contains using titration (a precise measurement technique). You'll need to plan your experiment, do preliminary tests, collect accurate data, and calculate the concentration of the substance using chemistry formulas. This is about doing real lab work properly—measuring carefully, controlling variables, and working through the whole process from planning to conclusion.
You successfully carry out the investigation, collect enough data to reach a conclusion, calculate the concentration, and describe which variables you controlled.
You use preliminary trials to refine your method, collect quality data that gives a valid conclusion, accurately determine both the standard solution and substance concentration, and explain how controlling variables improved your results.
You accurately determine the substance concentration with correct significant figures and units, justify how your modifications improved validity and accuracy, and evaluate your whole investigation in relation to what the consumer product claims or requires.
Standards typically taken alongside or after this one. Same subject, grouped by level.