15. At 25°C, k = 1.55 dm mol 2 min' at an ionic strength of 0.0241...
(i) The rate constant of the reaction H2O2(aq) + (aq) + H+(aq) + H2O(l) + HIO(aq) is sen- sitive to the ionic strength of the aqueous solution in which the reaction occurs. At 25°C, kr = 12.2dmmol-2min -1 at an ionic strength of 0.0525. Use the Debye-Hckel limiting law to estimate the rate constant at zero ionic strength. (ii) At 25°C, kr = 1.55dm@mol-2min-1 at an ionic strength of 0.0241 for a reaction in which the rate-determining step involves the...
Physical chemistry quanta, matter and change Pronlblem 89.6 (Atkins, 2th) 89.5* M. Cyfert, et al. (Int. J. Chem. Kinet. 28, 103 (1996)) examined the oxidation of tris(1,10-phenanthroline) iron (II) by periodate in aqueous solution, a reaction which shows autocatalytic behaviour. To assess the kinetic salt effect, they measured rate constants at a variety of concentrations of Na SO, far in excess of reactant concentrations and reported the following data: Na SO4]/(molkg') 0.0125 0.005 0.2 0.15 0.025 0.1 0.05 k/(dm3/2 mol-1/2...
Consider the following cell at 25°C. Pt | Hg(l) | Hg2Clz(s) | HCl(aq,0.500 mol kgr) | Cl2(g) | Pt (i) Write the appropriate reduction half-reactions for the system above.(4) (i) Write the Nemst equation for the cell reaction. (ii) Assuming that the Debye-Hückel Limiting Law holds at the given concentration, calculate the potential E for the cell. (iv) Calculate for the cell reaction.
Please help. i will rate What is the activity coefficient for each ion at the given ionic strength at 25°C? Activity coefficients at various ionic strengths can be found in this table. so - (x = 0.1 M) Y = .476 AP (4 = 0.01 M) y = .348 Dy! (u = 0.05 M) = 0,0941 (CH,CH), NH* (4 m (0.001 M) ¥m (0,9635 Ion Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given...
b. The rate law for the reaction (2A+B+C) is -ra=KACA CB, with ka=25 (dm /mol) /s. What are kB and kc?
Would somebody be able to help me with these 2. (6 points) The rearrangement of cyclopropane (C3Hs) to propene (C34) is a first-order reaction, with a rate constant (k) 6.7x 104 s1 at 773 K 0.25 mol of C3H6 is placed in a 5 L container. (i) What is the concentration (M) of C3Hs after 30 minutes? (ii) How long does it take for the C3H6 concentration to drop to 0.010 M? (iii ) How long does it take for...
6) Some unimolecular reaction, A → B, has a AH = -31.2 kJ/mol and a AS = 4.8 J/mol K. At 25 °C the reaction has a rate constant of 0.155 5-1. Raising the temperature to 37 °C increases the rate constant to 0.216 s-. Draw the potential energy surface (in terms of AG vs reaction coordinate) for this reaction at 25 °C (assume Hand S do not change with temperature).
For the gas phase decomposition of dinitrogen pentoxide at 335 K 2 N205 4 NO2 + O2 the following data have been obtained: 0.173 [N2O3], M time, s 9.75x10-2 122 5.50x10-2 244 3.10x102 366 Ms! The average rate of disappearance of N,Os over the time period from t=0 stot - 122 sis Submit Answer Retry Entire Group 9 more group attempts remaining For the gas phase decomposition of hydrogen iodide at 700 K 2 HI -H2 +12 the following data...
I need help finding the rate law, the relationship between rate and k, and lastly how to find max k. Consider the following reaction which follows zero-order reaction kinetics 2 A(g) + Catalyst(s) → B(g) ΔH = -273.33 kJ Notice that the reaction is exothermic, so in a closed system it is possible for this to get out of hand: The reaction releases energy, which increases the temperature, which increases the rate, which makes it heat up faster, which...
Need help on part B and C Review | Constants | Periodic Table The iodate ion, IO3-, is reduced by sulfite, SO32-, according to the following net ionic equation: Part A 103 - (aq) + 3SO32- (aq)-I- (aq) + 3SO42- (aq) The reaction is found to be first order in 103-, first order in SO32-, and first order in H+. If [103] = x, [SO32-] = y, and fH+1 = 2, what is the rate law for the reaction in...