Calculation formula for titration error

Et[10pH-10(-pH)][(Kt)(1/2)c(superscript ep, subscript hx)]. Endpoint error (Et): indicates the error between the endpoint of the titration and the equipotential point. Difference between endpoint pH and stoichiometric point (sp) pH: indicates the difference between the pH of the indicator and the stoichiometric point pH at the endpoint of the titration. Temperature coefficient (Kt): indicates the effect of temperature on the titration reaction.