The half life of a first order reaction is 28 second.what is its rate constant?

Q: Decay of a pollutant is a 1st order reaction with a half-life of 55 days. How many days are needed…

A: If initial concentaration= 100 Final concentration= 100-90=10

Q: The half-life of a first-order reaction was found to be439 s; what is the rate constant for the…

A: First order reactions are the reactions in which rate of the reaction is dependent on concentration…

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: Define half-life of a reaction. Write the expression of half-life for(i) zero order reaction and…

A: Half life of any reaction is defined as the time required for the reactant to become half of it's…

Q: At a given temperature, a first-order reaction has a rate constant of 2.1 × 10–3 s–1. How long will…

A: Since we know that the relationship between the concentration of reactant i.e [A] and time for a…

Q: What is the half-life of a first-order reaction with a rate constant of 7.40×10−4  s−1?

A: Given that,  Rate constant for a first order reaction K = 7.40×10-4 s-1 half life time period for…

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: Calculate the half-life of a first-order reaction if 66% of the reactants are reacted within 66 s.

A: Given- Reaction is first order reaction assume reactant is 100% Reactant reacted =66% Reactant…

Q: A first-order reaction has a half-life of 11.0 seconds.  What is the value of the rate constant?  k…

A: A first-order reaction means that the rate of the reaction is directly proportional to the…

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: 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: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

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Q: The rate constant for the breakdown of an isotope of iodine is first order and has a half-life of…

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Q: Define Half-Life of a First-Order Reaction:

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Q: Show that the time constant of a first order reaction is the reciprocal of the rate constant

A: In a first order reaction, the rate of the reaction depends on the first order of the concentration…

Q: A first-order reaction has a half-life of 25 minutes.  How much time is required for the reactant to…

A: Given: Half-life of first order reaction = 25 minutes The reactant is reduced to 12% of its initial…

Q: What fraction of a reactant has been consumed after 4 half-lives in a first-order reaction?

A: The rate of the reaction is referred to as the change in the molar concentration in a distinct…

Q: A certain reaction follows a 3rd order reaction. In an experiment, starting with 100 ppm, it was…

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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: When a 5.0010 mg aspirin tablet is taken it decomposes via zeroth order kinetics with a half-life of…

A: The time in which the concentration of a species becomes half of its initial concentration is called…

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: What is the rate constant of a first-order reaction that takes 318 seconds for the reactant…

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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 the first-order rate constant for its decay?

A: Relationship between t1/2 and k in first order reaction :-  t1/2 = ln 2/k  Or  t1/2 = 0.693/k  k is…

Q: A drug solution decomposes via first-order kinetics with a rate constant, k, of 0.0077 days-1. What…

A: The given condition is 1st order we know for  1st order , t1/2= 0.693/K 1

Q: A certain first order reaction is 60.5% complete in 60 minutes at 310K. What is its rate constant?

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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: 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: What is the rate constant of a first-order reaction if the half-life is 2.50 min?

A:

Q: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

A: DDT decomposes following the first-order kinetics. Half-life =12.0 yr Initial concentration, [A]o…

Q: A first order reaction has a rate constant of 0.00318 min1. what is the half-life of the reaction?

A: Given, rate constant of first order reaction =0.00318 min-1we are asked to calculate the half-life…

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

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Q: The decomposition of radioactive iodine is a first-order process with a half-life of 8 days. If the…

A: Half-life is the time required for the reaction to be half completed. It is denoted by t1/2 . For a…

Q: For the first order reaction, the initial concentration of A= .4 M. What is the half life of the…

A: when the rate of the reaction depends only on the concentration of the reactant and its power is one…

Q: For a certain first order reaction, 20 % of the reactant is consumed after the 90. min. How long…

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Q: A first order reaction has a half life 445.44 seconds. What is the rate constant in reciprocal…

A: The half-life of the first order reaction is 445.44 seconds. The half-life and rate constant are…

Q: Write the expressions for the half-lives of zero-order, first-order, and second-order reactions.

A: Half-life: The half-life of a chemical reaction is the time needed for half of an initial…