I Review | Constants | Periodic TableThe half-life of a reaction, t1/2, is the time it takesfor the reactant concentration A to decrease byhalf. For example, after one half-life theconcentration falls from the initial concentrationAo to [Alo/2, after a second half-life to [A]o/4,after a third half-life to [Alo/8, and so on. on.v CorrectPart BA certain second-order reaction (B→products) has a rate constant of 1.80x10-3 M.s-1 at 27°C and aninitial half-life of 246 s. What is the concentration of the reactant B after one half-life?Express your answer with the appropriate units.• View Available Hint(s)?HA2.04M

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A certain second-order reaction (B→products) has a rate constant of 1.80x10-3 M s1 at 27°C and an initial half-life of 246 s. What is the concentration of the reactant B after one half-life?

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 6RQ: Derive expressions for the half-life of zero-, first-, and second-order reactions using the...

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I Review | Constants | Periodic Table
The half-life of a reaction, t1/2, is the time it takes
for the reactant concentration A to decrease by
half. For example, after one half-life the
concentration falls from the initial concentration
Ao to [Alo/2, after a second half-life to [A]o/4,
after a third half-life to [Alo/8, and so on. on.
v Correct
Part B
A certain second-order reaction (B→products) has a rate constant of 1.80x10-3 M.s-1 at 27°C and an
initial half-life of 246 s. What is the concentration of the reactant B after one half-life?
Express your answer with the appropriate units.
• View Available Hint(s)
?
HA
2.04
M

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