Deducing a rate law from the change in concentration over time A chemistry graduate student is studying the rate of this reaction: 2H,PO, (aq)→ P20, (aq)+3H,0 (aq) She fills a reaction vessel with H,PO, and measures its concentration as the reaction proceeds: time (milliseconds) [H,PO,] 4. 0.100 M 10. 0.0565 M 20. 0.0393 M 30. 0.0302 M 40. 0.0245 M Use this data to answer the following questions. Write the rate law for this reaction. rate = * 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. I3D

Deducing a rate law from the change in concentration over time A chemistry graduate student is studying the rate of this reaction: 2H,PO, (aq)→ P20, (aq)+3H,0 (aq) She fills a reaction vessel with H,PO, and measures its concentration as the reaction proceeds: time (milliseconds) [H,PO,] 4. 0.100 M 10. 0.0565 M 20. 0.0393 M 30. 0.0302 M 40. 0.0245 M Use this data to answer the following questions. Write the rate law for this reaction. rate = * 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. I3D

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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Consider the hypothetical reaction: A + B + 2C → 2D + E where the rate law is Rate = -ALA) = k[A][B]2 An experiment is carried out where [Alo = 7.200 x 102 M, [B]. = 2.500 M and [Cla = 2.500 M. The reaction is started, and after 11.60 seconds, the concentration of A is 2.200 x 10° M. Calculate the value of k for this reaction in units of M2s1. Answer:
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 10. 0.0334M 20. [H₂CO3] 0.100M 30. 0.0200M 0.0143 M 40. 0.0111 M 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
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I completed the problem but for some reason, my answer is still wrong. for part a I got 5.48 x 10^-5 and for part b I got 5.61x10^-4. I substituted the concentrations in the equation but hey still seem to be wrong can someone explain?
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