Figures index

From

Qualitative Measurement of pH and Mathematical Methods for the Determination of the Equivalence Point in Volumetric Analysis

Andrea Checchetti, Jessica Lanzo

World Journal of Chemical Education. 2015, 3(3), 64-69 doi:10.12691/wjce-3-3-2
  • Figure 1. Litmus paper
  • Figure 2. Color of vinegar solution (Acid)
  • Figure 3. Color of sodium carbonate solution (Base)
  • Figure 4. pH meter
  • Figure 5. Change in the color of substance used as indicator
  • Figure 6. Titration curve of sodium hydroxide-hydrochloric acid
  • Figure 7. Second derivative calculated for points starting from the first derivative for a titration of sodium hydroxide with hydrochloric acid
  • Figure 8. The titration curve of a commercial vinegar
  • Figure 9. First derivative calculated for points for commercial vinegar and its inverse
  • Figure 10. The titration curve of Pepsi-cola
  • Figure 11. Second derivative calculated for points starting from the first derivative for a titration of Pepsi-cola with sodium hydroxide
  • Figure 12. Second derivative function in the neighborhood of inflection point