A Zero-order decomposition reaction of a substance took 4 minutes to achieve 30%  decomposition. What is its half life? The initial concentration of the substance is 2.78M.

Q: A particular reactant decomposes with a half-life of 145 s when its initial concentration is 0.268…

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Q: How many half-lives are required for the concentration of reactant to decrease to 1.56% of its…

A: Given data ;  Concentration is decreased to 1.56 %. It means that 0.0156 of [A0] is decomposed.…

Q: For which order of reaction is the half life independent of the initial concentration of the…

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Q: A substance undergoes first-order decomposition. After 45 min at 500°C, only 12.5% of the original…

A: A substance undergoes first order reaction.  Time = 45 min  Temperature = 500 °C  Original sample…

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

A: Since the decay process is first order  Hence we can say that  A = A0eKt  where A = final…

Q: The half-life for the radioactive decay of C-14 is 5730 years and is independent of the initial…

A: Rate constant is calculated using given half-life value:

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: The half-life for the radioactive decay of C-14 is 5730 years and is independent of initial…

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Q: A particular reactant decomposes with a half-life of 155 s when its initial concentration is 0.274…

A: Solution The rate of reaction or reaction rate is that the speed at that reactants area unit reborn…

Q: A reactant decomposes with a half-life of 47.9 s when its initial concentration is 0.325 M. When the…

A: Given: When the initial concentration is 0.325 M, the half-life = 47.9 s When the initial…

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: Archaeologists can determine the age of artifacts made of wood or bone by measuring the amount of…

A: Given : Order: First order Half life=5730 yr Amount present=27.8% To find: Age of tool Solution:…

Q: N205(g) decomposes to form NOg) and O2g). The reaction is first order with respect to N205(g) and…

A: Given Decomposition of N2O5 N2O5 (g) --------------> NO (g) + O2 (g) The reaction follows first…

Q: The first three half-lives of a chemical reaction are as follows: 44min, 22 min, 11min. What is the…

A: Below attached file showing the details answer.  All the best .

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

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Q: 1) The decomposition of N2O5 is an important process in the atmosphere. The half life is 2.05 x 10ʻ…

A: It is an example of first order kinetic reaction  Here we are required to find the time for a sample…

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: 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 has a constant half-life of 250 s. How long will it take for the reactant concentration…

A: Given: Reaction is having a constant half-life of 250 s. And to find the time required for the…

Q: Derive the half-life equation for a second-order reaction. What is the half-life for the…

A: A second order reaction is kinetic reaction where the rate of reaction is dependant on the…

Q: A possible reaction for the degradation of the pesticide DDT to a less harmful compound was…

A: Consider the given information is as follows; Order of the reaction = 1 (First order)         Rate…

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 decomposition reaction: SO,CL(g) S0,(g)+ Cl,(g) is first-order, and has a rate constant of 2.24…

A: For first order kinetics k = 2.303 log(A0/A)/t where k = rate constant A0 = initial concentration of…

Q: • The decomposition of SO,Cl, is first order in S0,Cl, and it has a half-life of 4.1 hours. If you…

A: Given data contains, Half-life is 4.1 hours. Initial concentration of SO2Cl2 is 1.6×10-3 mol. Final…

Q: A reaction has a rate constant, k = 1.29 s-1. What is the half-life (seconds) when the initial…

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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: half-life of the decomposition

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Q: A first order decomposition reaction has a half-life of 60.1 yr. What percentage of the original…

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Q: For a reaction: , [A]0 = 4.2 M, and the first two half-lives are 56 and 28 minutes, respectively.…

A: Given : [A]0 = 4.2 M First half life of reaction = 56 min. And second half life = 28 mins.

Q: The half life for the first order decomposition of nitromethane, CH,NO,, at 500K is 650 seconds. If…

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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: A particular reactant decomposes with a half‑life of 163 s when its initial concentration is 0.281…

A: Half-life time defines the state at which any reaction gets completed by 50%. It is the required…

Q: Give the half-life equation for a reactant with the following characteristics: a. Zero Order:…

A: Defination: the time required to consume half of the initial concentration of reactant is called…

Q: A particular reactant decomposes with a half‑life of 153 s when its initial concentration is 0.360…

A: Here, it is given that a particular reactant decomposes with a half‑life of 153 s when its initial…

Q: A particular reactant decomposes with a half-life of 123 s when its initial concentration is 0.380M.…

A: The given reaction’s half-life depends upon initial concentration. Hence, this reaction cannot be…

Q: The decomposition of N2O2 is an important process in tropospheric chemistry. The half-life for is…

A: When a reaction follows first order rate law, integrated  rate equation is Nt=Noe0.693×tt12whereNt =…

Q: 4. A Zero-order decomposition reaction of a substance took 5 minutes to achieve 80% decomposition.…

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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: At 518 °C, the half-life for the decomposition of a sample of gaseous acetaldehyde, initially at 363…

A: In chemical kinetics rate of reaction and its variation with any factors is studied. Various factors…

Q: It took 774.7 s for 42.04% of a substance to react according to first-order kinetics. What is the…

A: K = 2.303/t log (a/(a-x)) where K = first order rate constant = ? s-1 t = time taken = 774.7 s a =…

Q: A particular reactant decomposes with a half-life of 157 s when its initial concentration is 0.338…

A: Given datas ;  In first case , t1/2 = 157 s  [A]0 = 0.338 M  Let us assuming the second order of the…

Q: half-life

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Q: St is very desirable that pesticides eventually decompose in the environment to give harmless…

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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: A first-0order reaction has a half-life of 1.34 x 103 hours. If the initial concentration of…

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

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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: The rate constant for a second order reaction is 3.33×10² L mol's. The initial concentration of the…

A: Given data:  Rate constant K = 3.33×10-2 L mol-1s-1 Initial concentration A0=0.5 mol/L