2NO(g) +O2(g) → 2NO(g) The following kinetic data were obtained for the initial rates of disappearance of NO: Expriment Initial Conc. of NO Initial Conc. of O2 Initial Rate Exp. 1 0.0125 M 0.0253 M 0.0281 M/s Exp. 2 0.0250 M 0.0253 M 0.112 M/s Exp. 3 0.0125 M 0.0506 M 0.0561 M/s What is the value of the rate constant for the reaction? Express your answer to three significant figures. Just enter the number (e.g. 2.48x10^-4) and the unit.

2NO(g) +O2(g) → 2NO(g) The following kinetic data were obtained for the initial rates of disappearance of NO: Expriment Initial Conc. of NO Initial Conc. of O2 Initial Rate Exp. 1 0.0125 M 0.0253 M 0.0281 M/s Exp. 2 0.0250 M 0.0253 M 0.112 M/s Exp. 3 0.0125 M 0.0506 M 0.0561 M/s What is the value of the rate constant for the reaction? Express your answer to three significant figures. Just enter the number (e.g. 2.48x10^-4) and the unit.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section11.1: Reaction Rate

Problem 11.2CE: Instantaneous rates for the reaction of hydroxide ion with Cv+ can be determined from the slope of...

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Instantaneous rates for the reaction of hydroxide ion with Cv+ can be determined from the slope of the curve in Figure 11.3 at various concentrations. They are (1) At 4.0 105 mol/L, rate = 12.3 107 mol L1 s1 (2) At 3.0 105 mol/L, rate = 9.25 107 mol L1 s1 (3) At 2.0 105 mol/L, rate = 6.16 107 mol L1 s1 (4) At 1.5 105 mol/L, rate = 4.60 107 mol L1 s1 (5) At 1.0 105 mol/L, rate = 3.09 107 mol L1 s1 (a) What is the relationship between the rates in (1) and (3)? Between (2) and (4)? Between (3) and (5)? (b) What is the relationship between the concentrations in each of these cases? (c) Is the rate of the reaction proportional to the concentration of Cv+? Explain your answer.
The rate constant for the fi rst-order decomposition of N2O5 in the reaction 2 N2 O5(g) → 4 NO2(g) + O2(g) with v = kr[N2O5] is kr = 3.38 x 10-5 s-1 at 25 oC. What is the ha lf- life of N2O5? What w ill be the total pressure, init ial ly 78.4 kPa for the pure N2O5 vapour, (a) 5.0 s, (b) 5.0 min after init iation of the reaction?
Determine the average rate of change of BB from ?=0 st=0 s to ?=272 s.t=272 s. A⟶2BA⟶2B Time (s) Concentration of A (M) 0 0.7300.730 136136 0.4450.445 272272 0.1600.160 rateB= __________M/s
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Expriment	Initial Conc. of NO	Initial Conc. of O₂	Initial Rate
Exp. 1	0.0125 M	0.0253 M	0.0281 M/s
Exp. 2	0.0250 M	0.0253 M	0.112 M/s
Exp. 3	0.0125 M	0.0506 M	0.0561 M/s