Redox Titration Curve & Population Sweep

This 2D simulator models the moment a redox titration is actually called "done" in a real lab: not the true equivalence point, which is invisible, but the volume at which a redox indicator visibly changes color. Instead of watching molecules drift inside a 3D beaker, this version draws the full Nernstian titration curve directly and, below it, arranges 400 indicator molecules into a grid sorted by their own transition threshold — turning the macroscopic color change into a visible statistical sweep front that decomposes the sigmoid molecule by molecule. Adjust the two half-reaction potentials and swap between ferroin, diphenylamine and methylene blue to see how indicator choice determines whether the visible color change lands on top of the true equivalence volume or drifts away from it.