1. A second-order reaction has an initial reactant concentration of 0.032 M and a rate constant k of 1.4 M-1s-1, How many seconds must elapse for the reactant concentration to decrease to 0.025 M? Do not enter units as part of your answer. Type your numeric answer and submit.
1. A second-order reaction has an initial reactant concentration of 0.032 M and a rate constant k of 1.4 M-1s-1, How many seconds must elapse for the reactant concentration to decrease to 0.025 M? Do not enter units as part of your answer.
Type your numeric answer and submit.
2. For the reaction
2N2O3(aq) 4NO2(aq) + O2(g), the concentration of N₂Os was measured over several minutes. The following plots were obtained.
What is the reaction order for this reaction?
(Image description: There are three graphs, all with time as the x-axis. The first graph has the y-axis as the concentration of dinitrogen pentaúde. The curve decays exponentially. The second graph has the y axis as in of the concentration of dinitrogen pentoxide. The curve decays linearly. The third graph has the y-axis as 1 divided by the concentration of dinitrogen pentoxide. The curve increases exponentially.]
SELECT ONE OPTION
a. Zero
b. First
3. In a zeroth order reaction, it takes 342 s for 75% of a hypothetical nesactant to decompose. Determine the half-life f1/2 in units of seconds. Do not enter units with your numerical answer.
Type your numeric answer and submit
WRONG ANSWERS:- 342 & 171
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