a) The reactant concentration in a first order reaction was 7 6010 2 M after 45 0 ss and 2 3010 3 M after 75 0 s What is the rate constant for this reaction b) The reactant concentration in a second order reaction was 0 240 M after 140 ss and 6 6010 2 M after 760 s What is the rate constant for this reaction c) The reactant concentration in a zero order reaction was 8 0010 2 M after 110 ss and 2 5010 2 M after 395 s What was the initial reactant concentration

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Question: a) The reactant concentration in a first-order reaction was 7.6010 2 M after 45.0 ss and 2.3010 3 M after 75.0 s. What is the

a) The reactant concentration in a first-order reaction was 7.6010² M after 45.0 ss and 2.3010³ M after 75.0 s. What is the rate constant for this reaction?

b) The reactant concentration in a second-order reaction was 0.240 M after 140 ss and 6.6010² M after 760 s. What is the rate constant for this reaction?

c) The reactant concentration in a zero-order reaction was 8.0010² M after 110 ss and 2.5010² M after 395 s. What was the initial reactant concentration?

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