Question

4. Use the method of initial rates (the simple method, not the more robust approach) to determine the rate law and rate constant for the reaction NH4 + NO, N2 + 2 H2O (acid solution) Given the following data: [HNO2]/M [NH,*/ M. Rate x 108 /mol L's! 0.0092 0.098 34.9 0.0092 0.049 16.6 0.0488 0.196 335 0.0249 0.196 156

Answer 1

Rate law R = k [N ]"! [ Noz]"> n = order of the rector From Data & s ② 174 349 = k [0-098]" [ 0-0092)"? —@ 9 1606 Ek [04970 [00092]"? Drueling © by C5 210 = 20 - IDñ 11 Again from data 7 sa, 5 335 = K[ 01 19:]" [mouse > 2 156 = K - 147" [6-0249]” - Doviding by @), 2:14 = 212 - Rate =k[wytytyNozJ4 = kewany ] []

From carta @ Rate contant thi= 349 * 16-8 mollis 700098 mol L") (060092 mal 1-1) = 3.9810-4 mollist .