Recent content by emissivity

well... is there anyone who can tell me how to delete this post? sorry..

well I got it but I don't know how to delete this post I'll figure it out wait a sec..

dear borek then could you help me plot the 1st derivative graph?

Homework Statement at first, please look at this link http://upload.wikimedia.org/wikipedia/commons/0/0a/Potentiometrics_meas_1st_2nd_deriv-with-legend.JPG as you know, potentiometric titration's data makes this graph. and first derivative, 2nd derivative etc.. I haven't tried...