The overall reaction 2A + B = C + E takes place in two steps: STEP 1 (slow): A + B C + D STEP 2 (fast): D+A= E Which of the following graphs best represents how the rate of the reaction changes when the concentration [A] is increased? A T à b B U 1 A d D [A] Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. B [A] T C [A] D [A] Your answer

The overall reaction 2A + B = C + E takes place in two steps: STEP 1 (slow): A + B C + D STEP 2 (fast): D+A= E Which of the following graphs best represents how the rate of the reaction changes when the concentration [A] is increased? A T à b B U 1 A d D [A] Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. B [A] T C [A] D [A] Your answer

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...

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A chemistry graduate student is studying the rate of this reaction: 2C1,0, (8) → 2C1, (g)+50, (g) He fills a reaction vessel with Cl,0, and measures its concentration as the reaction proceeds: time [C1,0,] alo (minutes) 0.900M 10. 0.585 M 20. 0.380M 30. 0.247M 40. 0.161M Use this data to answer the following questions. Write the rate law for this reaction. rate = k Calculate the value of the rate constant k. k = | Round your answer to 2 significant digits. Also be ? sure your answer has the correct unit symbol.
Chemistry 2.We did a great little experiment with sodium thiosulfate: Na2S2O3(aq)HCl(aq)2NaCl(aq)+ H2O(l)+ SO2(g)+ S(s) A. Describe 3 ways that we could 'follow' this experiment in order to measure the rate of the reaction B. Sketch a graph showing the effect of concentration on rate. Label your axes and sketch the shape of the curve. C. The Maxwell-Boltzmann (M-B) distribution is a way to visualize the effect various factors have on the rates of a reaction. Sketch 2 M-B graphs to show how the effect of increasing temperature would affect a reaction.
A chemistry graduate student is studying the rate of this reaction: 2H₂PO4 (aq) → P₂O₂ (aq) + 3H₂O (aq) He fills a reaction vessel with H₂PO4 and measures its concentration as the reaction proceeds: time (seconds) [H₂PO4] 0 0.700M 10. 0.273 M 20. 0.170M 30. 0.123 M 40. 0.0967M Use this data to answer the following questions. Write the rate law for this reaction. x10 Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. X rate = k k = 0 ?
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A chemistry graduate student is studying the rate of this reaction: H₂CO3(aq) → H₂O (aq) + CO₂ (aq) - He fills a reaction vessel with H₂CO3 and measures its concentration as the reaction proceeds: time (seconds) 0 0.10 [H₂CO3] 0.700M 0.40 0.189M 0.20 0.109M 0.30 0.0767M 0.0592M Use this data to answer the following questions. Write the rate law for this reaction. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. rate = k k = 0 x10 ロ・ロ X 8 8
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A chemistry graduate student is studying the rate of this reaction: CICH,CH,CI (g) → CH,CHCI (g) + HCI (g) She fills a reaction vessel with CICH,CH,Cl and measures its concentration as the reaction proceeds: [CICH,CH,CI] time (seconds) 0.0300 M 1.0 0.0208 M 2.0 0.0144 M 3.0 0.0100 M 4.0 0.00695 M Use this data to answer the following questions. Write the rate law for this reaction. rate = k Calculate the value of the rate constant k. k = 0 Round your answer to 2 significant digits. Also be ? sure your answer has the correct unit symbol.
4. The rate law for the reaction H:(g) + F2(g) 2HF(g) at 298 K is rate = k [H.][F-]. %3D Predict the effect of each of the following changes on the initial rate of the reaction. * increase decrease no change Addition of H2 at constant temperature and volume Increase in volume of the reaction vessel Addition of a catalyst O O O O O O O O O
Consider the reaction below at 100oC T2U (g) ⟶⟶ 2 T (g) + U (g) When [T2U] = 0.250 M, the reaction rate is 9.30 x 10-3 M/s, and when [T2U]o = 0.144 M, the reaction rate is 3.09 x 10-3 M/s, which is the numerical value of the specific-rate constant, k, for this reaction? A. 0.149 B. 0.0372 C. 0.0667 D. 0.250
Study the two-step reactions below. Reaction 1: Step 1 (slow): H,(g) + ICI(g) Step 2 (fast): HI(g) + ICI(g) HI(g) + HCI(g) I,(g) + HC(g) Reaction 2: Step 1 (fast): NO(g) + NO(g) Step 2 (slow): N,0,(g) + 0,(g) 2NO,(g) (8O'N For each two-step reaction, answer the following: a. Write the overall reaction. What substance is the reaction intermediate? b. What is the rate law for the mechanism? C. What is the molecularity of the mechanism?
A chemistry graduate student is studying the rate of this reaction: CICH,CH, CI (g) → CH,CHC1 (g)+HC1 (g) She fills a reaction vessel with CICH,CH,Cl and measures its concentration as the reaction proceeds: time [CICH,CH,CI] (seconds) 0.0200M 10. 0.0106M 20. 0.00563 M 30. 0.00299M 40. 0.00158M Use this data to answer the following questions.