kinetics - Chem 125 Winter Name: _ Partner: _ Partner: _...

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Chem 125 Winter Name: ___________________________ Date of Experiment: ________________ Partner: __________________________ Lab (circle one): T 8 – 11 W 12 – 3 R 8 – 11 R 3 – 6 Partner: __________________________ Experiment 5: The Hydrolysis of Tertiary-Butyl Chloride: A Chemical Kinetic Study Lab Report Due: Beginning of lab during week 6 (week of February 6 th to February 10 th ). Part 1: pH to [HCl] to [t-BuCl] data 1. Write the balanced chemical reaction below: t-BuCl + H 2 O => t-BuOH + HCl 2. Show the calculation for [HCl] t for time = 30 seconds in your room temperature experiment. [HCl] 30 =10 -pH 10 -4.05 =8.92 x 10 -5 3. Show the calculation for [t-BuCl] initial at room temperature. [ t -BuCl] t = [ t -BuCl] initial – [HCl] t, corrected 6.685 x 10 -4 = [ t -BuCl] initial In the table below, record your results for [t-BuCl] initial at the three different temperatures. Title this table (in the space below) and use units where appropriate. Raw Data Showing Temperatures and [t-BuCl] initial values Temperature Actual Temperature [t-BuCl] initial Room 23 ° C 6.685 x 10 -4 Cold 18 ° C 2.014 x 10 -4 Hot 28 ° C 2.943 x 10 -4
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Chem 125 Winter 4. Show the calculation for [t-BuCl] t for time = 30 seconds in your room temperature experiment. [HCl] f – [HCl] 30 = [t-BuCl] 30 0.000668489 - .0000459169 = 0.00062257 = 6.23 x 10 -4 5. Complete the following: As the reaction proceeds (circle one): Question Answer A Answer B (a) pH increases decreases (b) [H + ] increases decreases (c) [t-BuCl] increases decreases Attach an Excel graph of pH vs. time for room temperature only. Include all the data here. Attach an Excel graph of [HCl]
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This note was uploaded on 04/03/2008 for the course CHEM 125 taught by Professor Retsek during the Winter '08 term at Cal Poly.

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kinetics - Chem 125 Winter Name: _ Partner: _ Partner: _...

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