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Studying the Kinetics of a Chemical Reaction, Part I (1)

Studying the Kinetics of a Chemical Reaction, Part I (1) -...

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Unformatted text preview: o 2008, 1999 Cengage Learning Pre-Laboratory Assignment 1. The following data were collected at 20 °C for the reaction of bromphenol blue (HBPBZ‘) and hydroxide ions (OH'), shown in Equation 14. HBPBZ‘ + OH- = BPB3' + H20 (Eq. 14) The times required to consume a small but constant amount of HBPBZ‘ at varying initial HBPBZ‘ and OH‘ concentrations were measured and are recorded below. Determination [HBPBZ‘L M [OH-1, M Time, s 1 7.22 x 10-6 1.00 75 2 7.22 x 10‘“ 0.25 290 3 3.63 x 10'6 1.00 152 (a) Determine the reaction order with respect to OH‘. r 0 f) : n (?.DHI0“'J’ (1-00)” 2% ,M 75 .1- 9 r3 , K(‘tlaaxro*0) {(”‘25)9 ”d .200 ' .8005 (b) Determine the reaction order with respect to HBPBZ'. 0% ,— I: (1.91110‘5)‘ Chou)” 19?? I ' E2 7‘; E)“ ("03 no “0' “9035 .32 ,-.r< 5. ~ :Mmh-vac X 'I-AJ ’V/ (c) Write the rate law for the reaction of HBPBZ“ with OH‘. {2er :K CHMEZ'JQ» 'J 11 ...
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