The half-life of a pesticide determines its persistence in the environment. A common pesticide degrades in a first-order process with a rate constant of 7.8 1/hours. What is the half-life in hours of the breakdown reaction? Enter to 4 decimal places.

Q: The reaction SO,Cl2(8) → SO2(8) + Cl2(8) is first order in SO,Cl,. Using the following kinetic data,…

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A: The relationship between rate constant and activation energy is given by  where K = rate constant…

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: Nitrogen pentoxide gas, N₂O5, decomposes according to the reaction: It was observed that the…

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Q: The half life of a first order reaction is 28 second.what is its rate constant?

A: Half life (t1/2) :- " The time required for half of the reactants to convert into products is called…

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Q: The first-order rate constant for the decomposition of a certain insecticide in water at 12°C is…

A: (a) integrated rate law is given by      ln ([A]0[A]t)  =  k t

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Q: Consider the following reaction mechanism Step 1: NO + NO N2O2 Step 2: N2O2 + H2 H2O + N2O…

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

A: The rate constant of the reaction can e calculated as follows-

Q: Suppose that the half-life of steroids taken by an athlete is 42 days. If the steroids biodegrade by…

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Q: The decomposition of a certain insecticide in water at 12oC follows first-order kinetics  with a…

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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: 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: concentration

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Q: The decomposition of a certain insecticide in water at 12 °C follows first-order kinetics with a…

A: a To find the concentration of the insectiside: Here we consider a first order reaction for which we…

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Q: Calculate the final concentration for a second order reaction with a initial concentration of 0.643…

A: Second-order reaction means the rate is directly proportional to the square of the reactant…

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

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Q: Derive an expression for the half-life of a second-order reaction in terms of the rate constant k.

A: The time in which half of the reactant gets decomposed is known as half life time of the reaction…

Q: The decomposition of N2O5 in solution in carbon tetrachloride is a first-order reaction. 2N205 -…

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

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

A: The rate of the reaction is referred to as the change in the molar concentration in the distinct…

Q: CF2Cl2 is a chlorofluorocarbon (CFC) that has been tied to the destruction of the atmospheric ozone…

A: The reactions in which reactant's amount taken varies or changes linearly with time are known as…

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: A first-order reaction has a rate constant k = 0.0815 s-1 at a temperature of 65oC and a rate…

A: To calculate activation energy of the reaction in kJ/mole with the given rate constant at different…

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 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 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: The decomposition of N2O5 in solution in carbon tetrachloride is a first-order reaction. 2N2O5 –…

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Q: What is the rate constant of a first-order reaction when 20.0% of a reactant remains after 30.0 s?

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

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: A first-order reaction has a half-life of 25.5 s . How long does it take for the concentration of…

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

A: Given : Half life of pesticide = 6 days. Order of reaction = 1st order  And the time passed = 20…

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

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Q: Understanding the high-temperature formation and breakdown of the nitrogen oxides is essential for…

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

A: Given : Order of reaction = 1 Half life of reaction = 75 mins Initial concentration of drug = 1.2…

Q: A chemical reaction has a First-Order rate law with a half-life of 303 s. What is the value of the…

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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 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: Many drugs decompose in blood by a first-order process. Two tablets of aspirin supply 0.60 g of the…

A: For 1st order reaction :-K=0.693t12Where, K = rate constant              t12=half life

Q: For a certain first order reaction, 20 % of the reactant is consumed after the 90. min. How long…

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

A: Given data, Half-life of drug = 46 min Order of the reaction = 1 Time = 92 min

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: 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,…

Q: Gaseous NO2 decomposes by a second order process and the rate constant at 573 K is 1.1 x 102 dm3…

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