10.8 Kinetics of reactions in solution (5) Effect of ionic strength-primary/kinetics salt effect k 0.6 og 0.4 Effect of ionic strength on the rate of reaction 0.2 between two ions +4: Co(NH3)5Br++ Hg 0.0 +2:S2O32+I +1: NO2NCO2 C2H5I-+ Oh -0.2 0: CH3COOC2Hs OH -1: H0+H++ Br -0.4 0.0 0.3 2: Co(NH3)s Br2++ OH- A substantial amount of inert salt(supporting electrolyte) was added to keep the ionic strength and therefore the activity coefficient of the solution essentially constant.A B 0 log 2 s k Z Z A I k = Effect of ionic strength on the rate of reaction between two ions. +4: Co(NH3 )5Br2+ + Hg2+ +2: S2O8 2- + I − +1: [NO2NCO2C2H5 ] − + OH− 0: CH3COOC2H5 + OH− -1: H2O2 + H+ + Br− -2: Co(NH3 )5Br2+ + OH− 0.0 -0.2 -0.4 0.2 0.4 0.6 0.0 0.1 0.2 0.3 I 0 log s k k A substantial amount of inert salt (supporting electrolyte) was added to keep the ionic strength and therefore the activity coefficient of the solution essentially constant. (5) Effect of ionic strength-primary/kinetics salt effect 10.8 Kinetics of reactions in solution