1) A first – order reaction is 65% complete at the end of 50 minutes . - a) What is the value of the rate constant(K) in min." b) What is half-life of this reaction

Q: The first order rate constant for the decomposition of a certain hormone in water at 25C is 3.42 x…

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Q: The half life of a first order reaction is given as 15.6 days. How long will it take to decompose to…

A: 1) First order rate constant  K1 = 2.303/t log(a)/(a-x)  2) K1 and t1/2 relation  K1 = 0.693/ t1/2…

Q: A certain first-order reaction is 27.5 percent complete in 5.70 min at 25°C. What is its rate…

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Q: What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 35.0…

A: Given, Assuming first order kinetics. 75.0 percent of a given sample decomposes in 35.0 minutes Let,…

Q: A certain first-order reaction is 65.5 percent complete in 7.90 min at 25°C. What is its rate…

A: Given data: t = 7.90min The reaction is completed 65.5% Let the initial concentration of [A] is 100…

Q: What is the overall order of the reaction?

A: Given :- 2A + B + 3C → products  order with respect to A is zero  order with respect to B is two…

Q: It was found that 60.4% of hydrogen peroxide degraded at 300 K in 75 minutes. Given that the…

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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: After 54.0 min, 38.0% of a compound has decomposed. What is the half‑life of this reaction assuming…

A: Rate constant, k can be determined as follows:

Q: A substance undergoes first-order decomposition. After 28 min at 500°C, only 12.5% of the original…

A: The given information is as follows: The original sample, A∘= 100 % The sample left after 28…

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: 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: assuming

A: According to the question, After 53.0 min, 16.0% of a compound has decomposed. We need to determine…

Q: After 55.0 min, 11.0% of a compound has decomposed. What is the half‑life of this reaction assuming…

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Q: 14) A second-order reaction has a half-life of 18 s when the initial concentration of reactant is…

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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: A substance undergoes first-order decomposition. After 28 min at 500°C, only 12.5% of the original…

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Q: A particular reactant decomposes with a half-life of 133 s when its initial concentration is 0.395…

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Q: What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 80.0…

A: Step 1: For the given condition the kinetics is considered to be first order. A first order kinetics…

Q: A substance undergoes first-order decomposition. After 36 min at 500°C, only 12.5% of the original…

A: When a substance remains only 50℅ in a period, that period is known as the half-life of that…

Q: What is the half-life of this reaction at 1000°C?

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Q: A substance undergoes first-order decomposition. After 32 min at 500°C, only 12.5% of the original…

A: Using formula of 1st order reaction: Kt = 2.303log A°/A  K = .693/t1/2

Q: A reaction of 0.066 M of A is heated at 800°C for 2.21 hours. Calculate the half-life of the…

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Q: The rate constant for this zero-order reaction is 0.0190 M · sl at 300 °C. A products How long (in…

A: For zero order reaction,   Where, [A]t = 0.940 M [A]0 = 0.290 M     k = 0.0190 M.s-1

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: 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: What is the half-life of a compound, A, if 75.0 percent of a given sample of the compound A…

A: 75.0 % of compound A decomposes in 60.0 min. The decomposition follows first-order kinetics.Here,…

Q: Using the method of Initial rates calculate the reaction order for KIO3.

A: To determine the order of the reaction for KIO3 using the initial rates method.  The initial rate…

Q: How to Determine First-order Reaction?

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

Q: After 74.0 min, 24.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: reaction has a rate constant, k = 0.0866 M-1 s-1. What is the half-life (seconds) when the initial…

A: k = 0.0866 M-1 s-1 [Ao] = 4.27 M

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

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Q: A certain first-order reaction is 43.5 percent complete in 6.90 min at 25°C. What is its rate…

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Q: A plot of 1/[A] versus time for the hypothetical reaction given below yields a straight line. A → B…

A: From the plot we can calculate the rate constant if the reaction .

Q: After 46.0 min, 33.0% of a compound has decomposed. What is the half-life of this reaction assuming…

A: Given, At 46.0 min, 33% compound decomposed Formula Used, k=1tlnAoAt where, K is the rate constant.…

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: 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: After 40.0 min, 28.0% of a compound has decomposed. What is the half‑life of this reaction assuming…

A: Let the amount of a substance with half-life t1/2 that remains after time t is 0.5t/t1/2.   Since…

Q: Calculate the rate constant (in units M/min) for a zero order reaction with a half life of 13.7…

A: Given :-  t½ = 13.7 min  Initial concentration [A]o = 0.496 M   To be calculated :-  Rate constant…

Q: The reaction A → B + C is found to be zero order. If it takes 4.2  102 seconds for an initial…

A: Order of reaction = zero order  Time = 4.2 ×102 sec  Initial concentration = 0.58 M Final…

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: A substance undergoes first-order decomposition. After 37 min at 500°C, only 12.5% of the original…

A: The integrated rate equation for first order reaction is  k = 2.303tlog[R]o[R] k = rate constant t =…

Q: After 72.0 min, 15.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: A substance undergoes first-order decomposition. After 53 min at 500°C, only 12.5% of the original…

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Q: If the [S2O32-] is initially 2.49 x 10-4 M, and the reaction takes 129 seconds for the solution to…

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