It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.450 M to 0.320 M at 25°C. What is the half life (t1/2) of the reaction?  (Answer in min to three sig figs.)

Q: The reaction A + 2B → products was found to be first-order to A and first- order to B. When the…

A: We have to predict by what factor rate increases.

Q: A certain second-order reaction (B→products) has a rate constant of 1.15×10-3 M.s . What is the…

A: A second order reaction is a reaction whose overall order is 2. It may involve a single reactant or…

Q: If the first-order reaction is found to be 48.39 min. what mass will remain after 55 minutes given a…

A: Sine the relationship between the concentration and time for a first order reaction is given by  ln{…

Q: What is the half-life for the decomposition of O3 when the concentration of O3 is 2.35 × 10−6 M? The…

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Q: The following enzyme-catalyzed reaction follows zero-order kinetics. When the initial concentration…

A: S ⟶ P Initial concentration of the reactant = 0.55 M Rate constant , k = 0.12 M/min Concentration of…

Q: Part A A first-order reaction has a half-life of 21.6 s. How long does it take for the concentration…

A:

Q: In a first-order decomposition reaction, 50.0% of a com-pound decomposes in 10.5 min. (a) What is…

A: Given   The time taken for fifty percent decomposition is 10.5 min.

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A:

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

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Q: Part A A certain first-order reaction (A-→products) has a rate constant of 3.60x10-3s at 45 °C. How…

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Q: After 43.0 min, 37.0% of a compound has decomposed. What is the half-life of this reaction assuming…

A: The answer us given as follows  Half life is 64.76 minute

Q: The decomposition of hydrogen peroxide, 2 H₂O(aq) → 2 H₂O(l) + O₂(g), follows first-order kinetics…

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Q: A certain first-order reaction is 31.5 percent complete in 4.50 min at 25°C. What is its rate…

A: Rate of reaction represents the change of concentration of a reactant or a product with respect to…

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

A: Use the integrated rate law of a first-order reaction to find the rate constant.

Q: The reaction  2NO2 yields 2NO + O2 Follows second-order kinetics, at  300c, [NO2] drops from…

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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: Reaction, A → 2B, is 2nd – order kinetics. It takes 40 s for the reactant,  A, to drop from its…

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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: Benzoyl peroxide, the substance most widely used against acne, has a half-life of 9.8 ×103days when…

A: Given that: Half life = 9.8×103 days

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A:

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

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

Q: The decomposition of a compound, A, to form B + C is known to be a first order reaction. If the…

A: Given data: The half-life for the first-order decomposition reaction t1/2= 6.7 min. To find: The…

Q: The first-order reaction, SO2C12 → SO2 + Cl2, has a rate constant equal to 2.20 x 10° s at 593 K.…

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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: The first-order reaction, SO2Cl2 → SO2 + Cl2, has a rate constant equal to 2.20 × 10-5 s-1 at 593 K.…

A: The rate of the first-order reaction depends only on one reactant. According to the first-order…

Q: is

A: Rate law is :  Rate' = k • [A] • [B]^2  Here, A concentration is constant that means rate of…

Q: A certain first-order reaction A B is 25% complete in 42 min at 25°C. What is the half- life of the…

A: Given: The time required for the completion of 25% of a first-order reaction = 42 min We have to…

Q: You may want to reference (Pages 598 - 605) Section 14.5 while completing this problem. Part A A…

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

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Q: What is the velocity of a first-order reaction at 37oC when the reactant concentration is 6 × 10-2 M…

A: A first order reaction is reaction in which a chemical reaction order in which the reaction rate…

Q: n order to be effective, a certain drug must be at amountgreater than 10 mgin the body.The drug is…

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Q: After 40.0 min, 22.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: A first-order reaction has a rate constant of 0.33 min-1.  How long would it take for the…

A: For a first order reaction: t = 2.303/k log[A]o/[A]t

Q: The decomposition of hydrogen peroxide, 2 H₂O(aq) → 2 H₂O(l) + O₂(g), follows first-order kinetics…

A:

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A: Half life time = 44 min  Initial concentration = 0.47 μg /ml. Time = 132 min  Concentration after…

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

A: Given,  Time, t = 42 min  Initial Concentration [A]0 = 0.45 M  Final Concentration, [A] = 0.32 M

Q: The half-life of a pesticide determines its persistence in the environment. A common pesticide…

A: Reaction  of decay process is first order reactiom. Half life of  first order Reaction  =0.693/K…

Q: The reaction A+ 2B → products was found to be first-order to A and first- order to B. When the…

A:

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A: Half-life of reaction = 20 minutes

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A:

Q: A first-order reaction has a half-life of 15.5 s . How long does it take for the concentration of…

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Q: In a first-order reaction, the reactant is 40.0% reacted (or consumed) at the end of 48.6 minutes.…

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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: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A:

Q: A first-order reaction has a half-life of (6.34x10^1) minutes. How many minutes would it take for…

A: Note - Since you have multiple questions, we are suppose to solve only the first question for you.…

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

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Q: Slove part A and B   The reactant concentration in a zero-order reaction was 6.00×10−2 M after 200 s…

A: The integrated rate law or zero – order reaction is given below.

Q: 10. For first order reaction A →P with rate constant k = 0.02 s' , how long it would for…

A: The rate equation for the first order reaction is:

Q: A reaction that is second-order in reactant A has (A]o = 0.200 M. The half-life is 45.6 sec. What is…

A: