Question

39. Which of the following choices can function as a bidentate lh a. PH b. CI c. CN- gand? e. CO 40. The best name for K&[FeCl(CN)4] is a. tetrapotassium dichlorodicyanoiron(I) b. potassium dichlorodicyanoiron(II. c. potassium dichlorodicyanoferrate(III) d. tetrapotassium dichlorobis(cyanojiron(IIl) e. potassium dichlorotetracyanoferrate(I) Calculate the pOH for a solution with [H,0.1 = 3.1 x iO, M a. 3.10 41. 一ー d. 5.49 3.2 x 106 b. 10.90 c. 8.51 e. 42, Chlorine dioxide reacts in basic water to form chlorite and chlorate according to the followin _ chemical equation: 2CIOfaq) + 20H-(aq) → Cl02-(aq) + CIO式aq) + H2O(1) A kinetic study of this reaction under a certain set of conditions yielded the data bel 0.0500 0.100 0.100 0.100 0.100 0.0500 5.75 x 10-2 2.30 x 10-1 1.15 x 101 Which one of the following is the rate law for this reaction? a. rate =k(CIO][OH] b. rate = k[ClO2]2[OH] c. rate k[CIO2IIOH d. rate k(CIO2TOH e. rate kICIO21TOH

Answer 1

From trail 2 and 3 [COJ = constant, So rate = k [OH-] a From. 2 From. 3 2.30 x 10-1 = k (0.1)b 1.15 x 10-1-k (0.05)b Divide eq.2 with eq.1 2.30x10-1 1.15x10" (2)b k(0.1)b k(0.05)b 2 The rate law is Rate-k [CIO2] a [OH-] b-k [CI02] 2 [OHT 1. Option b is the right answer