Cengage Learnin ✓ Cengage Learnin ✓ Cengage Learnin OWLv2 | Online ✓ b-cnow-owl.ceng X what are the unit X ChatGPT Buy iPhone 15 a ✓ prod03-cnow-owl.cengagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator-assignment-take Ex3 CH 14 and 15 [References] at 328.0 K. Find the rate constant at 315.4 K. The value of gas constant is 8.3145 × 10¯³ kJ/K · mol. Question 1 1 pt The gas-phase reaction Question 2 1 pt 2 N2O5 (g) 4 NO2(g) + O2(g) Question 3 × 2 pts 1 Question 4 2 pts min 1 has an activation energy of 103 kJ/mol, and the rate constant is 0.0900 min‍ Rate constant = Question 5 1 pt Submit Answer Try Another Version 2 item attempts remaining Question 6 2 pts Question 7 1pt Question 8 2 pts Question 9 1 pt Question 10 2 pts Question 11 1 pt Question 12 1 pt Question 13 1 pt Question 141pt Question 151pt Progress: 14/15 items Due Mar 28 at 11:45 PM Finish Assignment Messages Ο 31 38,088 MAR 28 Previous Next Email Instructor Save and Exit

Cengage Learnin ✓ Cengage Learnin ✓ Cengage Learnin OWLv2 | Online ✓ b-cnow-owl.ceng X what are the unit X ChatGPT Buy iPhone 15 a ✓ prod03-cnow-owl.cengagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator-assignment-take Ex3 CH 14 and 15 [References] at 328.0 K. Find the rate constant at 315.4 K. The value of gas constant is 8.3145 × 10¯³ kJ/K · mol. Question 1 1 pt The gas-phase reaction Question 2 1 pt 2 N2O5 (g) 4 NO2(g) + O2(g) Question 3 × 2 pts 1 Question 4 2 pts min 1 has an activation energy of 103 kJ/mol, and the rate constant is 0.0900 min‍ Rate constant = Question 5 1 pt Submit Answer Try Another Version 2 item attempts remaining Question 6 2 pts Question 7 1pt Question 8 2 pts Question 9 1 pt Question 10 2 pts Question 11 1 pt Question 12 1 pt Question 13 1 pt Question 141pt Question 151pt Progress: 14/15 items Due Mar 28 at 11:45 PM Finish Assignment Messages Ο 31 38,088 MAR 28 Previous Next Email Instructor Save and Exit

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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List at least four experimentally determined parameters that you, an experimenter, can define when exploring the hydrolysis of ethyl benzoate by aqueous sodium hydroxide.
The acid-catalyzed iodination of acetone CH3COCH3(aq) + I2(aq) CH3COCH2I(aq) + HI(aq) is a common laboratory experiment used in general chemistry courses to teach the method of initial rates. The reaction is followed spectrophotometrically by the disappearance of the color of iodine in the solution. The following data (J. P. Birk and D. L Walters, Journal of Chemical Education, Vol. 69, p. 585, 1992) were collected at 23 C for this reaction. Determine the rate law for this reaction.
The color change accompanying the reaction of phenolphthalein with strong base is illustrated below. The change in concentration of the dye can be followed by spectrophotometry (Section 4.9), and some data collected by that approach are given below. The initial concentrations were [phenolphthalein] = 0.0050 mol/L and [OH] = 0.61 mol/L. (Data are taken from review materials for kinetics at chemed.chem.purdue.edu.) (For more details on this reaction see L Nicholson, Journal of Chemical Education, Vol. 66, p. 725, 1989.) (a) Plot the data above as [phenolphthalein] versus time, and determine the average rate from t = 0 to t = 15 seconds and from t = 100 seconds to t = 125 seconds. Does the rate change? If so, why? (b) Use a graphical method to determine the order of the reaction with respect to phenolphthalein. Write the rate law, and determine the rate constant. (c) What is the half-life for the reaction?
For the past 10 years, the unsaturated hydrocarbon 1, 3-butadiene (CH2 = CH - CH = CH2) has ranked 38th among the top 50 industrial Chemicals. It is used primarily for the manufacture of synthetic rubber. An isomer exists also as cyclobutene: The isomerization of cyclobutene to butadiene is first-order and the rate constant has been measured as 2.0104s1 at 150 C in a 0.53-L ?ask. Determine the partial pressure of cyclobutene and its concentration after 30.0 minutes if an isomerization reaction is carried out at 150 C with an initial pressure of 55 torr.
The following experimental data were obtained for the reaction of \'I14* and NOf in acidic solution. NH/(aq) + NO2-(aq) — N;(g) + 2 H,O(f) INH/I (mol L1) [NO21 (mol L-1, Rate = A[NJ/At (mol L-1 s’) 0.0092 0.098 3.33 X IO"7 0.0092 0.049 1.66 X 10‘7 0.0488 0.196 3.51 X 10"6 0.0249 0.196 1.80 X 10-6 Determine the rate law for this reaction and calculate the rate constant.
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.
5. What is the value for the rate constant, k? k = k'/1* = k = k"/0.5* = kavg r = k[OH°]*[ C25H3„N,'J" [OH] C2H,„N;'] r = 303
What is the rate law for the following mechanism in terms of the overall rate constant k? Step 1:. A+B Step 2: B+C → D (slow) C (fast) Express your answer in terms of k and the necessary concentrations (e.g., k* [A] ^3*[D]). > View Available Hint(s) nV ΑΣφ 5E.. rate =
86) 203 (9) 7 302 (9) What is the Rate Law? 1.0L vessel => in which 10 mole * 1.0 mole 03 * 1.0 mole 02 What fraction of 03 will have reacted when the rate falls to one-fourth of its initial valuc?
The following initial rate data were obtained on the rate of binding of glucose with the enzyme hexokinase (from yeast) present at a concentration of 1.34 mmol/dm3. [C6H12O6] / (mmol dm-3) 1.00 1.54 3.12 4.02 Initial speed v0 / (mol dm-3 s-1) 5.00 7.60 15.5 20.0 (a) What is the order of the reaction with respect to glucose? (b) use the data above to calculate the rate constant. k = ________ (mol/L/s, s-1, L/mol/s, or L2/mol2/s). 3 s.f. normal format
2) (6 poin Below law, including the value of the rate constant k, and fill in the blanks for Exp. 5 and 6. There might not be enough space here for you to show your work so feel free to attach a sheet with your work if you run out of you have incomplete data tables provided by a not so careful professor... Find the rate space. [A], in M 0.014 [B], in M 0.075 Еxp. # [C], in M 0.086 Initial Rate (M/s) 0.012 0.035 0.075 0.086 0.075 0.014 0.025 0.086 0.012 0.014 0.095 0.129 0.018 0.050 0.039 0.078 0.082 0.111 0.025 123 456
2. For the following mechanism, write expressions for the rate of change of Y and the Z. (Write the form of the differential rate equation only; you do not need to solve the differential equation) Write an expression for: dy dt dz dt || || A ks k₂ k₁ N k K3 // K-3 2B KA ko X+ kg C + D ks