[Kalzium] [Bug 192491] New: balancing a redox half-reaction

[Frederic MERAL]

https://bugs.kde.org/show_bug.cgi?id=192491

           Summary: balancing a redox half-reaction
           Product: kalzium
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: kalzium at kde.org
        ReportedBy: fr.meral at laposte.net


Version:           2.2.1 (using 4.2.2 (KDE 4.2.2), Mandriva Linux release
2009.1 (Cooker) for i586)
Compiler:          gcc
OS:                Linux (i686) release 2.6.29.1-desktop-4mnb

It would be nice and useful if the Equation Solver could balance a redox
half-reaction for a given redox couple, since oxydoreduction reactions are
quite frequent in chemistry and in biology.

For example the equation : a MnO4[-] + b H[+] + c e[-] <-> d Mn[2+] + e H2O
shoud give the answer : 1 MnO4[-] + 8 H[+] + 5 e[-] <-> 1 Mn[2+] + 4 H2O

where e[-] represents an electron (or perhaps another symbol in the equation
should be better to avoid confusion with the unknown coefficient e in the
equation)
and <-> represents the equilibrium in aqueous solution.

Basicly, I think it is the same as the original solver but considering only the
charge for the balance as regards electrons, which are only on one side of the
half-equation (the side where there is the most positive charge, which is the
one with the oxidizer)

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