IB Chemistry IA Error Analysis

Introducing the topic of investigating the rate law and parameters of the Thiosulfate-Hydrochloric Acid reaction and the process of determining activation energy.

Explaining the importance of considering experimental uncertainties, using Google Sheets and Plotly to account for errors in experimental data.

Discussing the calculation of uncertainties in both X and Y directions and the method of combining uncertainties for independent and dependent variables.

Demonstrating the utilization of Plotly to graph data and insert error bars to assess the uncertainty in the resulting trends.

Explaining the data processing steps and analysis involved in calculating activation energy, including creating an Arenus plot and incorporating significant figures.

Detailing the process of inserting error bars in Plotly to visualize the range of possible values and uncertainties in the data points.

Adding trend lines to data points, using error data to weigh fit, and expressing uncertainty in the slope of the graph using the Half Range method.

Explaining the calculation of activation energy based on the slope of the Arenus plot and converting uncertainty in slope to uncertainty in activation energy.

Discussing the comparison of experimental results with literature values, calculating percent error, rounding final results, and addressing systematic errors.