ASU CHM 343 – Outline of Quiz Questions

Spring 2026

estimated error (uncertainty) in graduated cylinder measurement (reference Error Analysis Review)
1.0 ml of distilled water (density = 0.997) was pipetted 10 times and weighted on a calibrated Mettler-Toledo XSR105 balance (+/- 0.01 mg). This data was recorded and saved as an ascii (csv) file on the CHM343 GitHub Data repository: 2024_08_24_Weight_1ml_Water_Pipette_Data.txt. What is the uncertainty (one standard deviation) of this pipette in delivering 1 ml of water?
Propagation of error in density from measured mass and volume (reference Error Analysis Review)
An experimental measurement of the rate constant from temperatures between 300-350 K have been recorded and saved as an ascii (csv) file on the CHM343 GitHub Data repository: Temp_Rate_Constant_kerr_Example_Data_CHM343.txt. Use nonlinear least-squared curve fitting of the data to determine the activation energy.
A recent paper in the Journal of Chemical Education (2026) was published entitled: “Spectrometer Assembly and Python-Based Data Science Lab on the Reduction Kinetics of Methylene Blue”. Do a literature search and obtain this paper and all the associated supporting information. Reproduced figure 6c and determine the associated pseudo-first-order rate constant (k_exp) and report the value below in units of min^-1.