1 2 pka log c July 8, 2019 16 32 64 128 Ph 1 2 pka log c Ph 7 1 2 pka log c Ph 1 2 pke pka log c )) demonstration Ph 1 2 pkw pka log c )) demonstration Démonstration ph 7 1 2 pka 1 2 log cb Pka = - log Pka = - log ka