A first order reaction has a half-life of 829 seconds at 25oC. How long (in seconds) does it take for the concentration of the reactant to drop to 11.2% of its initial concentration?

Q: Assuming first-order kinetics, if it takes 1200 hours to reduce a substance to 12.5% of its initial…

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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 rate constant for a first order reaction for which the half-life is 85.0 sec?

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

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: The rate constant for this first‑order reaction is 0.0660 s−1 at 400 ∘C. A⟶products After how many…

A: GivenK = 0.066 s-1Temperature = 400°CFinal concentration = 20.5% of original

Q: Calculate the initial concentration for a first order reaction with a final concentration of 0.403…

A: GivenOrder of reaction = 1Final concentration = 0.403 Mk = 0.00721 min-1t = 43.2 minInitial…

Q: A certain medication contains 200 mg of active ingredient per tablet. The medication is metabolized…

A: Initial Amount = 200 mg  According to question 150 mg has been metabolised in the body &…

Q: What is the rate constant of a first-order reaction when 20.0% of a reactant remains after 38.5 s?

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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: Nitrosyl chloride (NOCI) decomposes in a second order reaction. At 425°C, the rate constant is 1.67…

A: The answer to the following question is-

Q: The decomposition of A to B is a first-order reaction with a half-life of 13.1 min: A → 2B If the…

A: Given : The reaction is a first order reaction. Half life of reaction = 13.1 min Initial…

Q: What is the half-life (in seconds) of a zero-order reaction which has an initial reactant…

A: The half-life for the zero-order reaction is calculated as shown in equation (1) where [R]o is…

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

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Q: Sucrose (C12H22O11) hydrolyzes into glucose and fructose. The hydrolysis is a first-order reaction.…

A: First order formula :- K = (2.303/t)log[A]o/[A]t

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: A zero-order reaction has a half-life of 10.0 minutes when the reactant concentration is 0.250 M.…

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Q: Sucrose (C12H22O11) hydrolyzes into glucose and fructose. The hydrolysis is a first-order reaction.…

A: First order kinetics Question.

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: Sucrose (C12H22O11) hydrolyzes into glucose and fructose. The hydrolysis is a first-order reaction.…

A: We have to calculate mass of sucrose at time ,t= 1.73 hours .

Q: What is the half life (t1/2), in units of seconds,  for a first order reaction that has a k value of…

A: In the first-order reaction, the half-life will not be influenced by the concentration of the…

Q: O b. 0.55 hrs O c. 0.55 min O d. 1.81 min he half life of some made-up, 1st order reaction is 10…

A: Dear student I have given answer to your question in the image format.

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

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Q: A particular reaction is found to be zero order. The reactant has an initial concentration of 3.63 M…

A: The given data contains, A0 =3.04 MK =0.00480 M/s t = 63.3 seconds.

Q: The isomerization of methyl isocyanide, CH3NC → CH3CN, follows first-order kinetics. The half-lives…

A: Given that, t1/2 at 199°C = 161 min t1/2 at 230°C = 12.5 min T1 = 199°C T2 = 230°C To calculate:…

Q: Calculate the activation energy of a first-order reaction that is 20% completein 15 minutes at 40 °C…

A: It is given that a first order reaction is 20% complete at 15 minutes at 40°C and 20% complete at 3…

Q: A first order reaction has a rate constant of 0.0051 min-1. If we begin with 0.10 M concentration of…

A: Given, Rate constant, k = 0.0051 min-1. Initial concentration, A◦ = 0.10 M Time = 3 hours…

Q: What is the rate constant of a first-order reaction if the half-life is 6.28 min?

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Q: The rate constant for the first-order reaction below is 0.0476  s–1. A→B If the reaction is begun…

A: For a first order reaction: k = 2.303/t log[A]o/[A] where, [A]o = initial concentration, [A] =…

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: At 378.5oC, the half-life for the first order thermal decomposition of ethylene oxide is 363 min,…

A: The half-life of a reaction is the time taken for the reactant to reduce to half its initial value…

Q: A certain first-order reaction has a rate constant of 7.50 x 10-3 s -1 How long will it take for the…

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Q: The rate constant for first order reaction is 60/s. How much time will it take to reduce the…

A: The chemical reaction in which the rate of the reaction is dependent on the concentration of only…

Q: How long will it take for the reaction to be 85% complete if it takes 32.0 min for the concentration…

A: Initial concentration = 0.55 M concentration after 32 min = 0.42 M  Time = 32 min  Time when 85% of…

Q: (Q88) A first-order reaction has a half-life of 16.9 seconds. How long (in seconds) will it take for…

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Q: A certain second order reaction has a starting concentration of 0.00284 M and a half-life of 40.8 s.…

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

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Q: A biochemist studying breakdown of the insecticide DDT finds that it decomposes by a first-order…

A: DDT is the short form of dichlorodiphenyltrichloroethane. It is an organochlorine compound which was…

Q: concentration

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Q: What is the half-life for a first order reaction if the initial concentration of reactant is 1.25M…

A: Given that it is a first-order reaction. Initial concentration [Co]= 1.25M Final concentration[C] =…

Q: A first-order reaction has a half-life of 1.34 x 103 hours. If the initial concentration of reactant…

A: Half life of the reaction is the time at which half of the reactant get reduced.

Q: 8) It takes 8 min for the concentration of a reactant in a first-order reaction to drop to 45% at…

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Q: The reactant concentration in a first-order reaction was 9.00×10−2 MM after 15.0 ss and 9.20×10−3 MM…

A: The equation for first order reaction is:

Q: 3. It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.45…

A: Time = 42.0minute [a0]=0.45M [at]=0.25M

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: The rate constant, k, is determined to be 0.25 M-1s-1 and the initial concentration is 0.50 M of a…

A: Given: Initial concentration = 0.50 M Rate constant = 0.25 M-1.s-1   Chemical reaction be, 2A →…

Q: A first order reaction has a half life of 33 s. How long will it take for the reactant concentration…

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Q: What is the rate constant of a first-order reaction that takes 459 seconds for the reactant…

A: The time taken during a reaction to reduce the concentration of a reactant to half of its initial…

Q: The rate constant for a second-order reaction was determined as 0.186 L mol-1 s-1. How long does it…

A: Given  Initial Concentration (A)0  =  0.0671 M  Remaining Concentration (A)  =  0.0125 M  Rate…

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

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Q: A reaction is found to be first-order with a rate constant of 0.0525 s–1. If the reaction initially…

A: To solve this question, use the integrated equation for first order reaction and find out the time…