Suppose that exactly 100 bacteria are added into a flask containing nutrients for the bacteria. The data collected at 37 °C is summarized in the table. t (min) Number of bacteria What is the order of the rate of production of the bacteria? 0.0 100 17.0 200 first order 34.0 400 zero order 51.0 800 second order 68.0 1600 How many bacteria will be present after 119 min? number of bacteria: What is the rate constant for the process? Units: k =

Suppose that exactly 100 bacteria are added into a flask containing nutrients for the bacteria. The data collected at 37 °C is summarized in the table. t (min) Number of bacteria What is the order of the rate of production of the bacteria? 0.0 100 17.0 200 first order 34.0 400 zero order 51.0 800 second order 68.0 1600 How many bacteria will be present after 119 min? number of bacteria: What is the rate constant for the process? Units: k =

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter16: Reaction Rates

Section: Chapter Questions

Problem 6STP

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Similar questions

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Experiments were conducted to study the rate of the reaction represented by this equation.[2] 2NO(g)+2H2(g)N2(g)+2H2O(g) Initial concentrations and rates of reaction are given here. Experiment Initial Concentration [NO] (mol/L) Initial Concentration, [H2] (mol/L) Initial Rate of Formation of N2 (mol/L min) 1 0.0060 0.0010 1.8104 2 0.0060 0.0020 3.6104 3 0.0010 0.0060 0.30104 4 0.0020 0.0060 1.2104 Consider the following questions: (a) Determine the order for each of the reactants, NO and H2, from the data given and show your reasoning. (b) Write the overall rate law for the reaction. (c) Calculate the value of the rate constant, k, for the reaction. Include units. (d) For experiment 2, calculate the concentration of NO remaining when exactly one-half of the original amount of H2 had been consumed. (e) The following sequence of elementary steps is a proposed mechanism for the reaction. Step 1: NO+NON2O2 Step 2: N2O2+H2H2O+N2O Step 3: N2O+H2N2+H2O Based on the data presented, which of these is the rate determining step? Show that the mechanism is consistent with the observed rate law for the reaction and the overall stoichiometry of the reaction.
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