Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
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Experiment for Kinetics – The Iodine Clock Reaction
Results A1: Trial 1: took 43.64 seconds to turn from clear to purple, trail 2: took 44.82 seconds to turn purple, trail 3: which was 47.49 seconds to turn purple, trail 4: was 45.23 seconds to turn purple again, and lastly trail 5: which was 43.63 seconds to turned from clear to purple.
Results A2: Trial 1: took 55.10 seconds to turn from clear to purple, trail 2: was 52.77 seconds to turn purple, trail 3: which was 44.67 seconds to turn purple, trail 4: was 59.69 seconds to turn purple again, and lastly trail 5: which was 54.88 seconds to turned from clear to purple.
Results A3: Trial 1: took 76 seconds to turn from clear to purple, trail 2: was 88 seconds to turn purple, trail 3: which was 102 seconds to turn purple, trail 4: was 82 seconds to turn purple again, and lastly trail 5: which was 93 seconds to turned from clear to purple.
Results A4: Trial 1: took 206.31 seconds to turn purple, trail 2: was 188.55 seconds to turn purple, trail 3: which was 177.13 seconds to turn purple, trail 4: was 199.36 seconds to turn purple again, and lastly trail 5: which was 172.56 seconds to turned from clear to purple.
a. Write the rate law for the reaction with the order of reaction with respect to [S2O82-] you determined in the planning questions and your determined order of I-.
b. Calculate the rate constant, k, for each trial by substituting in the appropriate concentration and rate values into your determined rate law.
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- Experiment for Kinetics – The Iodine Clock Reaction Results A1: Trial 1: took 43.64 seconds to turn from clear to purple, trail 2: took 44.82 seconds to turn purple, trail 3: which was 47.49 seconds to turn purple, trail 4: was 45.23 seconds to turn purple again, and lastly trail 5: which was 43.63 seconds to turned from clear to purple. Results A2: Trial 1: took 55.10 seconds to turn from clear to purple, trail 2: was 52.77 seconds to turn purple, trail 3: which was 44.67 seconds to turn purple, trail 4: was 59.69 seconds to turn purple again, and lastly trail 5: which was 54.88 seconds to turned from clear to purple. Results A3: Trial 1: took 76 seconds to turn from clear to purple, trail 2: was 88 seconds to turn purple, trail 3: which was 102 seconds to turn purple, trail 4: was 82 seconds to turn purple again, and lastly trail 5: which was 93 seconds to turned from clear to purple. Results A4: Trial 1: took 206.31 seconds to turn purple, trail 2: was 188.55 seconds to turn purple,…arrow_forwardExperiment for Kinetics – The Iodine Clock Reaction Results A1: Trial 1: took 43.64 seconds to turn from clear to purple, trail 2: took 44.82 seconds to turn purple, trail 3: which was 47.49 seconds to turn purple, trail 4: was 45.23 seconds to turn purple again, and lastly trail 5: which was 43.63 seconds to turned from clear to purple. Results A2: Trial 1: took 55.10 seconds to turn from clear to purple, trail 2: was 52.77 seconds to turn purple, trail 3: which was 44.67 seconds to turn purple, trail 4: was 59.69 seconds to turn purple again, and lastly trail 5: which was 54.88 seconds to turned from clear to purple. Results A3: Trial 1: took 76 seconds to turn from clear to purple, trail 2: was 88 seconds to turn purple, trail 3: which was 102 seconds to turn purple, trail 4: was 82 seconds to turn purple again, and lastly trail 5: which was 93 seconds to turned from clear to purple. Results A4: Trial 1: took 206.31 seconds to turn purple, trail 2: was 188.55 seconds to turn purple,…arrow_forwardExperiment for Kinetics – The Iodine Clock Reaction First part: Results A1: Trial 1: took 43.64 seconds to turn from clear to purple, trail 2: took 44.82 seconds to turn purple, trail 3: which was 47.49 seconds to turn purple, trail 4: was 45.23 seconds to turn purple again, and lastly trail 5: which was 43.63 seconds to turned from clear to purple. Results A2: Trial 1: took 55.10 seconds to turn from clear to purple, trail 2: was 52.77 seconds to turn purple, trail 3: which was 44.67 seconds to turn purple, trail 4: was 59.69 seconds to turn purple again, and lastly trail 5: which was 54.88 seconds to turned from clear to purple. Results A3: Trial 1: took 76 seconds to turn from clear to purple, trail 2: was 88 seconds to turn purple, trail 3: which was 102 seconds to turn purple, trail 4: was 82 seconds to turn purple again, and lastly trail 5: which was 93 seconds to turned from clear to purple. Results A4: Trial 1: took 206.31 seconds to turn purple, trail 2: was 188.55 seconds…arrow_forward
- Experiment for Kinetics – The Iodine Clock Reaction First part: Results A1: Trial 1: took 43.64 seconds to turn from clear to purple, trail 2: took 44.82 seconds to turn purple, trail 3: which was 47.49 seconds to turn purple, trail 4: was 45.23 seconds to turn purple again, and lastly trail 5: which was 43.63 seconds to turned from clear to purple. Results A2: Trial 1: took 55.10 seconds to turn from clear to purple, trail 2: was 52.77 seconds to turn purple, trail 3: which was 44.67 seconds to turn purple, trail 4: was 59.69 seconds to turn purple again, and lastly trail 5: which was 54.88 seconds to turned from clear to purple. Results A3: Trial 1: took 76 seconds to turn from clear to purple, trail 2: was 88 seconds to turn purple, trail 3: which was 102 seconds to turn purple, trail 4: was 82 seconds to turn purple again, and lastly trail 5: which was 93 seconds to turned from clear to purple. Results A4: Trial 1: took 206.31 seconds to turn purple, trail 2: was 188.55 seconds…arrow_forwardThe following transformation can be accomplished by using the provided below (table) complete the statement regarding the reaction below. Write the letter in UPPERCASE corresponding to the reagents from the reagents pool below. 0901 A) H2SO4, H2O B) Br2, CCl4 set of reagents. Using the pool of reagents C) (0)Hg(OAc)2, H20 (1) NaBH4, NaOH D) i) 03 ) (CH3)2S H) HBr peroxide (1) BH3, THF ) H202, NaOH Ji) KMnO4, warm, conca. K) Br2, H2O LIOLarrow_forwardQ1arrow_forward
- Draw the organic product(s) for each of the following reactions. If more than one product is expected indicate the major product.arrow_forwardFor this question: How SPF blocks UV rays from the Sun Please answers it Try to answer it in a presentation way please Please please please answer as fast as possible pleasearrow_forwardNonearrow_forward
- question 1/2arrow_forwardExperiment Initial Initial Initial rate/ concentration concentration mol dm-3 s-1 of A/mol dm-3 of B/mol dm-3 1 0.16 0.20 5.0 x 10-5 2 0.24 0.20 7.5 × 10-5 3 0.32 0.10 10.0 x 10-5 4 0.12 0.16 Determine value of X. Select one: O a. 2.50 x 10-5 O b. 3.00 x 10-5 О с. 3.75 х 10-5 O d. 4.00 x 10-5arrow_forwardPERTINENT CALCULATIONS Remember: rate = k[C25H30CIN3]"[OH_]" where n =0 since excess OH was used. n3= 1. Refer to your graphs and complete table below Linear correlation (r- value) Graph Kinetic Run I Kinetic Run II Average r- value absorbance vs time 0.9972 0.9955 0.9964 In (absorbance) vs time 0.9978 0.9994 0.9986 2/(absorbance) vs time 0.9805 0.9879 0.9952 2. Based on the average linear correlation (r2 -value) the reaction order, m, with respect to crystal violet, CV, is Explain. 3. Write the rate law. 4. The slope, and therefore pseudo" rate constant, kr', is at T1. CC, and ko' is at T2arrow_forward
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