Description Usage Arguments Value Author(s) Examples
View source: R/redox_titration.R
This function calculates and plots the titration curve for a reducing agent analyte using an oxidizing agent as the titrant. The calculation uses a single master equation that finds the volume of titrant needed to achieve a fixed potential, as outlined in R. de Levie's Principles of Quantitative Chemical Analysis (McGraw-Hill, 1997).
1 2 3 |
conc.analyte |
Molar concentration of the analyte; defaults to 0.010 M. |
vol.analyte |
Initial volume, in mL, of the solution containing the analyte; defaults to 25.00 mL. |
pot.analyte |
Standard state or formal potential for the analyte's half-reaction in V; defaults to 0.77 V. |
elec.analyte |
The number, n, of electrons lost by the analyte in its oxidation half-reaction; defaults to 1. |
conc.titrant |
Molar concentration of the titrant; defaults to 0.010 M. |
pot.titrant |
Standard state or formal potential for the titrant's half-reaction in V; defaults to 1.7 V. |
elec.titrant |
The number, n, of electrons gained by the analyte in its reduction half-reaction; defaults to 1. |
plot |
Logical; if TRUE, plots the titration curve. |
eqpt |
Logical; if TRUE, draws a vertical line at the titration curve's equivalence point. |
overlay |
Logical; if TRUE, adds the current titration curve to the existing titration curve. |
... |
Additional arguments to pass to |
A two-column data frame that contains the volume of titrant in the first column and the solution's potential in the second column. Also produces a plot of the titration curve with options to display the equivalence point and to overlay titration curves.
David T. Harvey, DePauw University. harvey@depauw.edu
1 2 3 4 5 6 7 8 | ### Simple titration curve with equivalence point
ex12 = redox_titration(eqpt = TRUE)
head(ex12)
### Overlay titration curves using different potentials for tirant
redox_titration(pot.titrant = 1.7, eqpt = TRUE)
redox_titration(pot.titrant = 1.5, overlay = TRUE)
redox_titration(pot.titrant = 1.3, overlay = TRUE)
|
volume potential
1 0.1070563 0.63
2 0.1576745 0.64
3 0.2320029 0.65
4 0.3408890 0.66
5 0.4998475 0.67
6 0.7307326 0.68
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