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Calculator MPeriodic Table Periodic uestion 6 of 14 Map Sapling Learning For the

ID: 491436 • Letter: C

Question

Calculator MPeriodic Table Periodic uestion 6 of 14 Map Sapling Learning For the following reaction, the concentration of A and the amount of time required to decrease that concentration to one-half of the initial concentration, th2, are directly proportional Therefore, a decrease in concentration of A shows a proportional decrease in the half life, tw2 products What is the order of this reaction? It the rate constant for this reaction is 0.0985 M. s at 400 C, what is the half-life of this reaction, given an initial concentration of 0.823 M. AO Previous 0 Next Asave And Ext p

Explanation / Answer

1)

the order of reaction is zero - order

half - life = A / 2 k

so half - life and initial concentration A are directly proportional

2)

rate constant k = 0.0985 M s-1

initial concentration A = 0.823 m

half - life = 0.823 / 2 x 0.0985

half - life = 4.18 s

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