1) The rate constant for the gas-phase reactionH2(g) + I2(g) → 2 HI(g)has the value 4.45 x 10-5 mol-1 dm³ s-1. What is the equivalent rate constant in units of molecule-1 cm³ s-1?2) The kinetics of the hydrolysis of methyl methanoate, CH3COOCH3, in aqueous solution wereinvestigated by measuring the concentration of the ester after different time intervals. The reaction wasfound to be first order in the concentration of the ester. Use the data below to determine the rate constantfor the reaction (must provide best fit graph).3600time,t/s1800540072009000concentration,c/ (mol dm-3)0.3000.1910.1350.0810.0550.035

Answered: Image /qna-images/answer/c9ba6dcf-6f73-4604-8fb6-d2122aa269e4.jpg

Answered: 1) The rate constant for the gas-phase…

1) The rate constant for the gas-phase reaction H2(g) + I2(g) → 2 HI(g) has the value 4.45 × 10-5 mol-1 dm3 s-1. What is the equivalent rate constant in units of molecule-1 cm³ s- 1?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section: Chapter Questions

Problem 113QRT

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Question

1) The rate constant for the gas-phase reaction
H2(g) + I2(g) → 2 HI(g)
has the value 4.45 x 10-5 mol-1 dm³ s-1. What is the equivalent rate constant in units of molecule-1 cm³ s-
1?
2) The kinetics of the hydrolysis of methyl methanoate, CH3COOCH3, in aqueous solution were
investigated by measuring the concentration of the ester after different time intervals. The reaction was
found to be first order in the concentration of the ester. Use the data below to determine the rate constant
for the reaction (must provide best fit graph).
3600
time,
t/s
1800
5400
7200
9000
concentration,
c/ (mol dm-3)
0.300
0.191
0.135
0.081
0.055
0.035

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