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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A chemistry graduate student is studying the rate of this reaction: CICH,CH,CI (g) → CH,CHCI (g) + HC1 (g) She fills a reaction vessel with CICH,CH,Cl and measures its concentration as the reaction proceeds: time (seconds) [CICH,CH,CI] 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 O 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.
A chemistry graduate student is studying the rate of this reaction: 250, (g)2SO₂ (g) + O₂ (g) She fills a reaction vessel with SO, and measures its concentration as the reaction proceeds: time (minutes) 0 10. 20. [So, 0.400M 0.118 M 0.0693 M 30. 0.0490M 40. 0.0379 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 = 0 of 0 D+D X 09
Chlorine oxide (CIO), which plays an important role in the depletion of ozone, decays rapidly according to the equation 2CIO(g) →→→ Cl₂(g) + O₂(g) - From the following data, determine the reaction order and calculate the rate constant of the reaction. Time (s) [CIO] (M) 2.91 x 103 8.11 × 10-6 3.64 x 10-3 5.77 × 10-6 4.37x103 4.48 x 10-6 5.10 x 10 3 3.66 x 10-6 5.83 x 10-3 3.09 x 10-6 Reaction order: O O 1 2 Rate constant: k = x 10 Ms (Enter your answer in scientific notation.)
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8 OKONETICS AND EQUILIBRIUM Deducing a rate law from the change in concentration over time A chemistry graduate student is studying the rate of this reaction: 2N₂O, (g) → 2N₂O, (g) + O₂(g) He fills a reaction vessel with N₂O, and measures its concentration as the reaction proceeds: time (minutes) 0 10. [N₂O,] Explanation 0.300M 0.121 M 20. 0.0762 M 30. 0.0555 M 40. 0.0436M 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. Check rate & D www-awa.aleks.com k= D.D X
Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate constant of ·0.0081Ms−1 2HI(g)→H2(g)+I2(g) Suppose a 4.0L flask is charged under these conditions with 400.mmol of hydrogen iodide. After how much time is there only 200.mmol left? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.
Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate constant of 0.0044 M's : 2 HI (g) - H, (g) +I, (g) Suppose a 3.0 L flask is charged under these conditions with 400. mmol of hydrogen iodide. How much is left 8.0 s later? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. x10
Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate constant of 0.0092 M-s : 2 HI (g) - H, (g) +L, (g) Suppose a 450. mL flask is charged under these conditions with 150. mmol of hydrogen iodide. After how much time is there only 75.0 mmol left? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits. dlo x10 8. 미
Consider this reaction: 2HI (g) → H, (g) +I, (g) At a certain temperature it obeys this rate law. rate =(0,465 s)[HI Suppose a vessel contains HI at a concentration of 0.540M. Calculate the concentration of HI in the vessel 2.80 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits.
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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