PROBLEM The iodide ion is oxidized in acid solution to the triiodide ion,I-3, by hydrogen peroxic hydrogen. H2O2(ag) + 31-(ag) + 2H+(ag) → 13-(ag) + 2H2O(1) A series of four experiments was carried out at different concentrations and the initial rates of 13- formation. a) From these data, obtain the reaction orders with with respect to H2O2, I- and H+. b) Then find the rate constant. c) Calculate the speed of reaction when [H2O2]=0.005 M, [I-)=0.020. initial concentration initial velocity Concentrac. Inicial (M) H2O2 I- 0.010 0.010 0.00050 1.15x10-6 0.020 0.010 0.00050 2.30x10-6 0.010 0.020 0.00050 2.30x10-6 0.010 0.010 0.00100 1.15x10-6 Exp. H+ Velocidad Inicial (M/s) 1 3 4

PROBLEM The iodide ion is oxidized in acid solution to the triiodide ion,I-3, by hydrogen peroxic hydrogen. H2O2(ag) + 31-(ag) + 2H+(ag) → 13-(ag) + 2H2O(1) A series of four experiments was carried out at different concentrations and the initial rates of 13- formation. a) From these data, obtain the reaction orders with with respect to H2O2, I- and H+. b) Then find the rate constant. c) Calculate the speed of reaction when [H2O2]=0.005 M, [I-)=0.020. initial concentration initial velocity Concentrac. Inicial (M) H2O2 I- 0.010 0.010 0.00050 1.15x10-6 0.020 0.010 0.00050 2.30x10-6 0.010 0.020 0.00050 2.30x10-6 0.010 0.010 0.00100 1.15x10-6 Exp. H+ Velocidad Inicial (M/s) 1 3 4

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Under dissolving indium chloride (InCℓ) in hydrochloric acid (HCℓ), In+ (aq) undergoes disproportionation reaction according to the following unbalanced equation. In+ (aq) = In (s) + In3+ (aq) This disproportionation follows a first – order kinetics with a half-life of 667 s.(a) What is the concentration of In+(aq) after 1.25 hours if the initial solution of In+ (aq) was prepared by dissolving 2.38 g InCℓ (s) in 5.00 x 102 mL of dilute hydrochloric acid?(b) What mass of In (s) is formed after 1.25 hours? (c) Determine the rate constant k, for this reaction. (d) Sketch a graph of [In+] versus time (sec) over a period of 3 hours.
Rate information was obtained for the following reaction at 25°C and 33°C; Cr(H2O)6 3+ + SCN¯ ---> Cr(H2O)5NCS2+ + H2O(l) Initial Rate [Cr(H2O)6 3+] [SCN-] @ 25°C 2.0x10-11 1.0x10-4 0.10 2.0x10-10 1.0x10-3 0.10 9.0x10-10 2.0x10-3 0.15 2.4x10-9 3.0x10-3 0.20 @ 33°C 1.4x10-10 1.0x10-4 0.20 Can a 4th order reaction occur?
Rate information was obtained for the following reaction at 25°C and 33°C; Cr(H2O)6 3+ + SCN¯ ---> Cr(H2O)5NCS2+ + H2O(l) Initial Rate [Cr(H2O)6 3+] [SCN-] @ 25°C 2.0x10-11 1.0x10-4 0.10 2.0x10-10 1.0x10-3 0.10 9.0x10-10 2.0x10-3 0.15 2.4x10-9 3.0x10-3 0.20 @ 33°C 1.4x10-10 1.0x10-4 0.20 a) Write a rate law consistent with the experimental data. b) What is the value of the rate constant at 25°C? c) What is the value of the rate constant at 33°C? d) What is the activation energy for this reaction? e) Can a 4th order reaction occur?
Use the References to access important values if needed for this question. For the gas phase isomerization of methyl cis-cinnamate, cis-C6H5 CH=CHCOOCH3 → trans-C6H5 CH=CHCOOCH3 the rate constant at 669 K is 9.12 x 10-4 s and the rate constant at 711 Kis 5.79 x 107 s-¹. -3 The activation energy for the gas phase isomerization of methyl cis-cinnamate is kJ.
What is rate of this reaction FeCl3+6Ki reacts to give 2FeI2+6KCl+I2
The following Data is to ionization rate reaction of Methyl acetate in presence of Hydrochloric acid (HCI 1N) at 25 °C,Which obtained by titration of a certain volume with sodium hydroxide: CH3COOC₂H5 →H*→ CH3COOH + C₂H5OH At certain time Periods, Calculate :1- Order of Reaction 2- Rate Reaction Constant 3-Time of Half life Time (min) 0 VsaoH(ml) 24 (Vo (V₁ - VT) - Vo) / 5 27 1.23 15 31.47 1.86 25 34.33 2.82 0 40
The data below was collected from three trials of the following reaction: 2ClO2 (aq) + 2OH- (aq) --> ClO3- (aq) + ClO2- (g) + H2O (l) [ClO2]o (M) [OH-]o (M) Initial Rate (M/s) 1 0.0500 0.100 5.75 x 10-2 2 0.100 0.100 2.30 x 10-1 3 0.100 0.0500 1.15 x 10-1 If the initial concentrations were as follows, [ClO2]o= 0.25 M and [OH- ]o = 0.095 M, what would the initial rate be?
The data below was collected from three trials of the following reaction: 2ClO2 (aq) + 2OH- (aq) --> ClO3- (aq) + ClO2- (g) + H2O (l) [ClO2]o (M) [OH-]o (M) Initial Rate (M/s) 1 0.0500 0.100 5.75 x 10-2 2 0.100 0.100 2.30 x 10-1 3 0.100 0.0500 1.15 x 10-1 a) What is the generic rate law for this reaction? b) What is the order for each reactant? What is the order for the overall reaction? c) What is the complete rate law for this reaction? d) If the initial concentrations were as follows, [ClO2]o = 0.25 M and [OH- ]o = 0.095 M, what would the initial rate be?
For the gas phase isomerization of cis-cyanostyrene, cis-C6H5CH=CHCN_trans-C%HşCH=CHCN the rate constant at 677 K is 5.01x10-4 51 and the rate constant at 717 K is 3.39x10-35-1. What is the activation energy for this reaction? kJ/mol
(1) The activation energy for the gas phase isomerization of methyl cis-cinnamate is 174 kJ.cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3The rate constant at 621 K is 8.10×10-5 /s. The rate constant will be 8.42×10-4 /s at_____ K. (1b) The activation energy for the gas phase isomerization of methyl cis-cinnamate is 174 kJ.cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3The rate constant at 654 K is 4.57×10-4 /s. The rate constant will be /s at _______ 695 K.
The bromination of acetone is catalyzed by the acid CH2COCH3 (aq) + Br2(aq)+H2O →(acid catalyst) CH3COCH2 + H3O+(aq) + Br -(aq) The rate of dissappearance of bromine was measured for several different initial concentrations of acetone, bromine, and hydronium ion. (see image) A. Deduce the rate law for the reaction and give order with respect to each reactant B. What is the numerical value value of k, the rate constant C. If [H3O+] is maintained at 0.050 M, whereas both [CH3COCH3] and [Br2] are 0.10 M, what is the rate of reaction?
E17B.4(a) The second- order rate constant for the reaction CH,COOCH. (aa OH (aq)CH, CO,(aq) + CH,CH2OH ( aq) is 0.11 dm mois.What is the concentration of ester (CH,COOC,H) after (i) 20 s, (ii) 15 min when ethyl ethanoate is added to aqueous sodium hydroxide so that the initial concentrations are [NaOH] 0.060 mol dm and [CH,COOC,H,] = 0.110 mol dm3? re ed -3 3 AL2R C +D ation