Ch ical chemistr Reaction Kinetic Determination of the rate law 1. Half-life method The rate law r=kA] [B].m (1748) /2 Forn≠1 (n-DA1- (17.29 2 og1041/2=g10 (n-1)logIoLAlo (17.49 (n-1) log101/2 g10 1-n)logIo[A] (1749)2 Determination of the Rate Law Physical Chemistry    The rate law r = k[A] [B] [L] (17.48) 1. Half-life method o A n n A n k t ( 1)log [ ] ( 1) 2 1 log log 10 1 10 1/ 2 10 − − − − = − (17.49)   A n o n n A k t 1 1 1/ 2 ( 1) 2 1 − − − − = For n  1 (17.29) o A n n A n k t (1 )log [ ] ( 1) 2 1 log log 10 1 10 1/ 2 10 + − − − = − (17.49) Reaction Kinetics