Figures index

From

pH and Acid-Base Equilibrium Calculations via a Matrix Representation of Solutions of Acids and/or Bases

Maria Michela SALVATORE, Marco GUIDA, Francesco SALVATORE

World Journal of Chemical Education. 2015, 3(4), 93-110 doi:10.12691/wjce-3-4-3
  • Scheme 1. Scheme for row 1 (labels) and vector at pH = 6.95 of mySolutionMatrix representing a solution of ammonia plus phosphoric acid
  • Figure 1. Acid dissociation constants,, connecting species in various Acid-Base group types.
  • Figure 2. MatrixGenerator Excel sheet after entering text and code in Table 2 and Table 3
  • Figure 3. Suggested steps for calculating the pH and equilibrium concentrations of all species in a solution of acids and/or bases using the matrixGenerator
  • Figure 4. Plot for the 0.05 M Na(NH4)2PO4 solution (Example 1).
  • Figure 5. Particular of <Example1> Excel sheet with pH and equilibrium concentrations of species in a 0.05 M solution of sodium diammonium phosphate (Na(NH4)2PO4)
  • Figure 6. Plot for the 0.05 M (NH4)2Fe(SO4)2·6H2O solution (Example 2)
  • Figure 7. Particular of <Example2> Excel sheet with pH and equilibrium concentrations of species in a 0.05 M solution of Mohr salt.
  • Figure 8. Plot for the 0.1 M (NH4)HF2 solution (Example3)
  • Figure 9. Particular of <Example3> Excel sheet with pH and equilibrium concentrations of species in a 0.1 M (NH4)HF2 solution
  • Figure 10. Plot for the phosphate mixture of Example4
  • Figure 11. Particular of <Example4> Excel sheet with pH and equilibrium concentrations of species in the phosphate mixture of Example4.
  • Scheme 2. Structures of Tris, TrisHCl and etilendiaminotetraacetic acid (H4EDTA)
  • Figure 12. Plot for the Tris-EDTA buffer of Example 5
  • Figure 13. Particular of <Example5> Excel sheet with pH and equilibrium concentrations of species in the Tris-EDTA buffer of Example5.
  • Figure 14. Plot for the 0.00684 M H4EDTA + 0.020 M Na4EDTA mixture of Example 6.
  • Figure 15. Particular of <Example 6> Excel sheet with pH and equilibrium concentrations of species in the 0.00684 M H4EDTA + 0.020 M Na4EDTA mixture of Example 6.