In a first-order reaction, the half-life is 133 minutes. What is the rate constant?

Q: Explain A Two-Step Mechanism for the observed first-order kinetics ?

A: SN1 reaction or unimolecular nucleophilic substitution reaction follows the first order kinetics…

Q: A reaction is second order and found to be 75% complete after 20 seconds. Find the half-life of the…

A: Formula for second order kinetics is :- 1/(A) = 1/ (A0) + kt  Where A0 initial  concentration of…

Q: At a given temperature, a first-order reaction has a half-life of 155 minutes How many minutes…

A: The correct answer is given below

Q: rate constant

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Q: If the half-life period of a first order reaction in A is 2 minutes, how long will it take [A] to…

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Q: A certain first-order reaction A ->B is 25% complete in 42 min at 25°C. What is the half-life of the…

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Q: a first order reaction has a half-life of 10 minutes. The value of the rate constant, k, for this…

A: Given 4: Half-life for 1st order reaction=10 min

Q: The half-life of a first-order reaction is found to be 28.25 min. a. What is the value of the rate…

A: a.

Q: A first-order reaction is 45% complete at the end of 35 minutes.What is the length of the half-life…

A: Given that, the reaction is 45% complete in 35 minutes.  For a first order reaction,    ln [ A ]  =…

Q: If the initial concentration of a reactant participating in a first- order reaction is increased…

A: The reaction rate or rate of reaction is the speed at which a chemical reaction takes place, defined…

Q: In a first order reaction the half life is 10 minutes. Determine the rate constant. How long does it…

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Q: A certain first-order reaction is 25% complete in 65s. What are the values of the rate constant and…

A: Given: The first order reaction is completed 25% in 65 s. The integral rate law equation of first…

Q: How many half-lives are required to reduce the concentration of a first order reaction to 6.25% of…

A: Half life means (initial concentration /2) means 50% of initial concentration will be remained after…

Q: A first order reaction has a rate constant of 1.833350 / minutes. What is the half life of the…

A: The half-life of the first-order reactions are independent of initial concentration of reactant.…

Q: What is a second-order reaction?

A: A second-order reaction has to be given.

Q: The initial concentration of a reactant in a first order reaction is 0.860 M. What will be its…

A: Given that, in first order reaction; Initial concentration of  a reactant = 0.860 M We have to find…

Q: If you know that a substance has dissociated a first-order reaction, and if its concentration after…

A: Formula used : t1/2 = ln(2)/K [A] = [A]. e-Kt

Q: A second-order reaction has a half-life of 12 s when the initial concentration of reactant is 0.98…

A:

Q: Chlorine dioxide (CIO2) decomposes in a first-order reaction with a rate constant of .0714s-1. If…

A: Since for any first order reaction, the relationship between the concentration and time is given by…

Q: Which of the folowing graphs represents the variation of the concentration of a particular reactant…

A: FIRST ORDER REACTION The first-order reaction is the chemical reaction in which the chemical…

Q: A reactant in a certain first-order reaction is 66 % consumed in 34 s. What is the half-life for…

A: A reactant in a certain first-order reaction is 66 % consumed in 34 s. What is the half-life for…

Q: A second-order reaction has a half-life of 10 s when the initial concentration of reactant is 0.99…

A:

Q: rate constant of a first-order process

A: First-order reaction depicts that the rate of reaction is directly proportional to the concentration…

Q: A first order reaction with respect to Reactant A has a rate constant of 4.206 x 102 minutes1. What…

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Q: In a first order reaction, the concentration of the reactant decays to its half in 10 minutes.…

A: The half-life of a first-order reaction can be determined by using the following formula: t12 =…

Q: The initial concentration of reactant of a 2nd order reaction is 4.80 M, if the reaction has a half…

A: The rate constant of second-order reaction is calculated as,

Q: How to Determine First-order Reaction?

A: The chemical reactions in which the rate of reaction is straightly proportional to the concentration…

Q: A certain third order reaction has a rate of 0.293 M/s when the concentration of reactant A is 0.30…

A:

Q: , the half-life of a first-order reaction

A: The half-life of a reaction is the time required for the reactant concentration to decrease to…

Q: For a first order reaction, the concentration decreases to 30% of its initial value in 5.0 min. What…

A: Given information,

Q: What is the rate constant of a first-order reaction if the half-life is 5.32 min?

A: Suppose a chemical reaction as follows --- A  →  P    (Where, A = reactant and P =product) Given…

Q: What is pseudo first-order rate constant?

A: A Pseudo first-order reaction is defined as a second-order or bimolecular reaction that behaves like…

Q: A first-order chemical reaction is observed to have a rate constant of 24 min-1. What is the…

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Q: Consider a first-order reaction with a half-life of 15 minutes. If the initial concentration is 1.50…

A: For first order kinetics:  kt = ln(A0/At) ....(1)  and t(1/2) = 0.693/k ...(2)

Q: the half life of a 1st order reaction is found to be 28.25 min. what is the value of the rate…

A: The reaction rates follow direct relationship with the reactant's species involved in first-order…

Q: A reactant in a certain first-order reaction is 56 % consumed in 63 s. What is the half-life for…

A: In this question, we will determine the half-life for the first-order reaction. The half-life period…

Q: What is the reactant concentration after 78.9 seconds for a second order reaction with a half-life…

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Q: Age of a tree/fossils can be measured by looking at the remaining Carbon-14 in a sample. C-14 has a…

A: Half life of C-14 = 5720 years As the reaction follow first order kinetics., Rate constant, K =…

Q: Give a mathematical expression for the half-life of a first order reaction and of a second order…

A: Half life period of a reaction is the time in which half of concentration of Reactants consumed. It…

Q: A chemical reaction has a First-Order rate law with a half-life of 303 s. What is the value of the…

A:

Q: It takes 5 minutes to reduce a certain reactant to 75% its original value, following a third-order…

A:

Q: A compound decomposes by a first order process. If 25.0 % of the compound decomposes in 60.0…

A: Answer: Half life of the compound is 145 min.

Q: For the first order reaction below, the initial concentration of A is 0.58 M. What is the rate…

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Q: After 48 seconds, 10.% of reactant has reacted. If the reaction is a 1st order reaction, the special…

A: Given that 10% of reactant has reacted. It implies that if 100% of reactant is present initially,…

Q: A first-order reaction has a rate constant of 0.33 min-1. It takes ________ min for the reactant…

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Q: What is the rate constant of a first-order reaction that takes 375 seconds for the reactant…

A: For the 1st order reaction we know that, t1/2 = (0.6932/K), K = rate constant.