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Chemistry
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11 Nov 2019

The mechanism of a reaction A → B is investigated. At the beginning of the reaction, the concentration of A is 1.85 ✕ 10−3M. After 75.0 s, the concentration of A is 4.61 ✕ 10−5M. Using the integrated rate laws, calculate the half-life of the reaction at 75.0 s for the following conditions.

(a) The reaction is first order in A.


(b) The reaction is second order in A.

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Jean Keeling
Jean KeelingLv2
11 Nov 2019

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Order Integrated Rate Law Graph Slope
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The reactant concentration in a zero-order reaction was 7.00×10−2M after 135 s and 2.50×10−2M after 315 s . What is the rate constant for this reaction?

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Part B

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Part D

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Express your answer with the appropriate units. Include an asterisk to indicate a compound unit with mulitplication, for example write a Newton-meter as N*m.t B

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