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

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: If a 1st order reaction takes 72 seconds for 28% to react, what is the rate constant for the…

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Q: Radioactive decay is a process that follows first-order kinetics. The half-life of 24Na is 0.001712…

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

A: Half life (t1/2) :- " The time required for half of the reactants to convert into products is called…

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: A certain first-order reaction has a rate constant of 0.00950 1/min at 300 K. What is the half-life…

A: Half life is the time when the concentration of reactants becomes half.

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: Radioactive decay is a first-order kinetic process. The half-life for the decay of plutonium-239 is…

A: Radioactive decay always follows first order kinetic process , so we have to use the formulas of…

Q: Radioactive decay is a process that follows first-order kinetics. The half-life of 41Ar is 0.01256…

A: First order reaction is a reaction in which the rate of reaction is directly proportional to the…

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: 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 is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 25.0…

A: The relationship between concentration and time for first-order reaction is given by

Q: A certain first-order reaction has a rate constant of 0.00710 1/min at 300 K. What is the half-life…

A: The relationship between rate constant and half life for first order reaction is -  Half life,…

Q: The first-order decomposition, A → products, has a rate constant of 0.0 Starting with [A], = 0.7 M,…

A: Given that rate constant = 0.02 s-1 [A0] = 0.7 M  [At] = 0.1 M

Q: A radioisotope of iodine, 131I, is used to study thyroid function. A patient is given a sample that…

A: Given: The concentration of the 131I sample = 1.70 × 10-4 M The half-life of 131I = 8.04 days. We…

Q: how long (in minutes) would it take for the amount of 41Ar to decrease to 54.04% of its initial…

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Q: Calculate the rate constant (in seconds) for the decomposition of insulin if the insulin polypeptide…

A: Decomposition is a first order reaction. Half life, t1/2 = 8 min = 480 seconds  [1 minute = 60…

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: Chemical B reacts by first-order kinetics. If the initial concentration of chemical B is 1.2 M and…

A: The answer is given as follows

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 reactant decomposes with a half-life of 179 s when its initial concentration is 0.3140 M. When the…

A: For the same reactant, the half life remains constant with decrease in concentration of the…

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

A: What are first order reactions? Assume a sample reaction- nA→Product So, first order reactions are…

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: The half-life for the decay of radium is 1620 years. What is the rate constant for this first-order…

A: The half-life of a reaction, t1/2, is defined as the amount of time required for a reactant…

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: 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: The half-life for the second order reaction A → Products is 4.57 min. What is the value of the rate…

A: Given , a second order reaction with half life of 4.57min and initial concentration of A as 0.217.

Q: The first-order decomposition, A→ products, has a rate constant of 0.02 s-1. Starting with [A], =…

A: Answer :- 97.3 Second  The time required the for [A]t = 0.1 M = 97.3 s…

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: The half-life for the zero order reaction A → Products is 276 s. What is the value of the rate…

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Q: Define the half-lifeof a reaction. Explain on the molecu-lar level why the half-life of a…

A: Half-life: The time required for the concentration of a reactant to decrease to one half of its…

Q: 49. The half-life for a first-order reaction is 32 s. What was the original concentration if, after…

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Q: In a first order decomposition in which the rate constant is 0.0287 sec-1, how long will it take (in…

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Q: What is the half-life of a first-order reaction which is 15% complete after 210 seconds?

A: Given, time to consume 15 % of reaction for first order = 210 sec we are asked to calculate the…

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: gallium-67? What are the units for k?

A: Half life time(t1/2) = 78.25 hrs  Aa we know Radioactive decay follows first order kinetics Rate…

Q: The first-order rate constant for the decomposition of a certain drug is 0.215 /month a) if 10.0 g…

A: The question is based on the concept of chemical kinetics. we have to calculate amount of drug…

Q: Carbon dating is often used to estimate the age of once living organisms (which contain carbon). The…

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Q: The isomerization of methyisocyanide, CH3NC, to acetonitrile, CH3CN, is a first-order reaction. If…

A: In a first order reaction, the rate of reaction is directly proportional to the change in substrate…

Q: Suppose that the half-life of a stimulant shot into a race horse is 28 days. Assuming the stimulant…

A: The time required for half of the reaction to break up into the original concentration is known as…

Q: Define the following terms :(a) Pseudo first order reaction.(b) Half life period of reaction (t1/2).

A: (a) Pseudo first order reaction is the type of reaction for which the order and molecularity are not…

Q: Radioactive decay of unstable atomic nuclei is at first order process. The half-life for the…

A: Given: Amount of C-14 remaining in the wood = 87 % of the initial amount (as the initial amount is…

Q: How much time is required (in minutes) for a reaction to be 46 % complete if it is first order…

A: The integrated rate law for a first-order reaction is given as: C=C0×(12)tt12…

Q: The isomerization of methyisocyanide, CH3NC, to acetonitrile, CH3CN, is a first-order reaction. If…

A: Since the reaction is given first order  hence we can say  ln(A0 / A) = Kt  where A0 = initial…

Q: The decomposition of N205 is a first-order reaction. If the half- life time is equal to 1114 second,…

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