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

Q: The reactant concentration in a zero-order reaction was 6.00×10−2 M after 115 s and 4.00×10−2 M…

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Q: rate constant

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Q: What is the half-life for a particular reaction if the rate law is rate = (1131 min-1)[A]?

A: In the given question   Rate = (1131 min-) [A]   Given reaction follow first order reaction  Rate =…

Q: A first order reaction has a half-life of 829 seconds at 25oC. How long (in seconds) does it take…

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Q: The rate constant for a first-order reaction is 0.54 s What is the half-life of this reaction if the…

A: A first order reaction is one whose rate is directly proportional to concentration of reactant. It…

Q: The reactant concentration in a second-order reaction was 0.520 M after 190 s and 4.00×10−2 M after…

A: For a 2nd order reaction, we know that the concentration and time are related as  1/[A] = 1/[A]0 +…

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 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 60.0 s?

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Q: When studying a 1st order reaction, you measure the concentration of the reactant at two times. at…

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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: The first-order reaction, SO2C12 –→ SO2 + Cl2, has a rate constant equal to 2.20 x 10s will remain…

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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: Which of the folowing graphs represents the variation of the concentration of a particular reactant…

A: FIRST ORDER REACTION The first-order reaction is the chemical reaction in which the chemical…

Q: Does the half-life of a zero-order reaction depend on the initial concentration of the reactant?

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Q: A particular first-order reaction has a rate constant of 0.0167 hr What is the half-life for this…

A: Given  rate constant for first order reaction = 0.0167 hr-1   To find half life for this reaction.

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 rate constant for this first-order reaction is 0.0330 s at 400 C. A products After how many…

A: Given reaction: A → products The rate constant of this reaction = 0.0330 s-1 We have to calculate…

Q: A second-order reaction has a half-life of 10 s when the initial concentration of reactant is 0.99…

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Q: concentration

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Q: What is the half-life for a particular reaction if the rate law is rate = (1301 min⁻¹)[A]?

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Q: How to Determine First-order Reaction?

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

Q: The reactant concentration in a second-order reaction was 0.590 M after 140 s and 2.70×10-2 M after…

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Q: Q4: The rate constant for a second-order reaction is 0.13 M's'. If the initial concentration of…

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Q: A zero-order reaction has a constant rate of 3.10×10−4 M/s. If after 80.0 seconds the concentration…

A: Given :  K = 3.10×10−4 M/s  t = 80 sec  Initial concentration = ao  Concentration after 80 sec = at…

Q: If a solution containing 14.0 gg of a substance reacts by first-order kinetics, how many grams…

A: Half-life period is the time required for the reactant (substrate) concentration to reduce to the…

Q: What is the rate constant of a first-order reaction when 20.0% of a reactant remains after 48.0 s?

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Q: The rate constant, k, for a first-order reaction is equal to  4.2 × 10-4 s-1. What is the half-life…

A: Given, k= 4.2 * 10-4 s-1  ( first order reaction)                       we know that the relation…

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

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

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Q: One example of a first-order reaction is the isomerization of hydrogen isocyanide to hydrogen…

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Q: The decomposition of phosphine, PH3, is a first-order reaction. 4 PH3(g) → P4(g) + 6 H2(g) The…

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

Q: The decomposition of sulfuryl chloride, SO2Cl2, to sulfur dioxide and chlorine gases is a…

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Q: What is the half-life for a particular reaction if the rate law is rate = (861 min⁻¹)[A]?

A: What is the half-life for a particular reaction if the rate law is rate = (861 min⁻¹)[A]? Rate…

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: What is the half-life for a particular reaction if the rate law is rate = (1201 min1)[A]? min 1 C 7…

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Q: What is the half-life for a particular reaction if the rate law is rate = (1261 min-1)[A]?

A: Rate = ( 1261 min-¹ ) [A] Comparing the above rate equation with general rate equation we get that ;…

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: The reactant concentration in a second-order reaction was 0.230 M after 230 s and 4.20×10−2 M after…

A: The rate law for a second order reaction is given below,

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: 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: The initial concentration of a reactant in a first order reaction is 0.860 M. What will be its…

A: Given  Order of a reaction = 1  Initial Concentration of Reactant (A0)    =  0.860 M  Number of Half…

Q: If the initial reactant concentration of a first order reaction is 1.60 M, what would be the…

A: Given :-  Reaction is first order  Initial concentration of reactant = 1.60 M  Half life = 9 s  To…

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: Given the reaction  2N2O(g) → 2N2(g) + 1O2(g)  Is a first order reaction with a half-life of 3580…

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Q: Determine the rate constant k of a zero-order reaction in M/s, if the initial concentration of…

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Q: After 48 seconds, 10.% of reactant has reacted. If the reaction is a 1st order reaction, the special…

A: Given that 10% of reactant has reacted. It implies that if 100% of reactant is present initially,…