It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0 years. How long would it take DDT in a soil sample to decompose from a concentration of 435 ppbm (parts per billion by mass) to 15 ppbm?

Q: The decomposition of N205 is first-order in N205. If the half-life for the reaction is 18.6 min, how…

A: Since we know that, for different order of reactions, the relationship between the concentration of…

Q: Copper-64 is used in the form of copper acetate to study brain tumors. It decays by a first-order…

A: Given that,half-life, t1/2 = 12.8 hoursInitial quantity, No = 33 mg Now find Nt at t = 3days +…

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: Radioactive decay is a process that follows first-order kinetics. The half-life of 24Na is 0.001712…

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Q: The decomposition of N2O5 is a first-order reaction. If the half- life time is equal to 1114 second,…

A: Decomposition of N2O5 is first order reaction.. Firstly we need to calculate the rate constant from…

Q: A reaction is completed by 50% in 30.0 minutes. How many minutes is 85% complete when this reaction…

A: For calculating the required time, we will use two Equations for each part. 1st one is the…

Q: A certain first-order reaction has a rate constant of 0.00950 1/min at 300 K. What is the half-life…

A: Half life is the time when the concentration of reactants becomes half.

Q: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

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Q: When a 5.00x10² mg aspirin tablet is taken it decomposes via zeroth order kinetics with a half-life…

A: Given 5X102 mg tablet of aspirin decomposes via zero order with half life of 3.1 hrs We have to…

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: A particular reaction is found to be zero order. The reactant has an initial concentration of 2.15 M…

A: In zero-order reaction, the rate does not vary with the increase or decrease in the concentration of…

Q: The rate constant for the breakdown of an isotope of iodine is first order and has a half-life of…

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

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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: When a 5.0010 mg aspirin tablet is taken it decomposes via zeroth order kinetics with a half-life of…

A: The time in which the concentration of a species becomes half of its initial concentration is called…

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

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Q: The decomposition of dimethylether at 504 °C is first order with a half-life of 1570 seconds. What…

A: Givent1/2 = 1570 sOrder of reaction = 1k * t1/2 = 0.693k = 0.693t1/2k = 0.6931570 sk = 4.415 * 10-4…

Q: certain substance, initially at 0.10 M in solution, decomposes by second-order kinetics. If the rate…

A: The question is based on the concept of chemical kinetics. it talks of second order reaction for…

Q: he half-life, t2, of a chemical reaction is proportional to the initial concentration of the…

A: Half Life (t1/2):

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

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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: A city's water supply is contaminated with a toxin at a concentration of 0.63 mg/L. Fortunately,…

A: Given: Toxin concentration=0.63 mg/L To Solve: Solution: The time elapsed until one half of the…

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: A drug solution decomposes via first-order kinetics with a rate constant, k, of 0.0077 days-1. What…

A: The given condition is 1st order we know for  1st order , t1/2= 0.693/K 1

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: How might you experimentally distinguish between a first-order and second-order kinetic reaction?

A: reaction order must be determined experimentally. follow the reaction by making measurement of the…

Q: Calculate the half life, in minutes, for a second order reaction with an initial concentration of…

A: For the second order rate of Reaction, the half life period or time can be given as - t1/2 =…

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

A: Given: Initial concentration of N2O5 = 0.22 M Rate constant = 5.25 x 10-4 s-1 Time taken = 10…

Q: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

A: To solve this problem first we have to calculate the rate constant by using half life time  K =…

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

A:

Q: The decomposition of aqueous hydrogen peroxide (H2O2) to gaseous oxygen and water is a 1st order…

A: t1/2 = 0.693/ K

Q: A certain substance, initially present at 0.500 M, decomposes by second-order kinetics with a rate…

A: Rate constant (k)= 4.0×10-1 L/mol.min Initial concentration (Ao) =0.500 M Concentration after time t…

Q: A city's water supply is contaminated with a toxin of 0.36mg/L. Fortunately, this toxin decomposes…

A: Given Data: The concentration is 0.36 mg/L. The rate constant is 27 day-1.

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: What does the term  half-life  mean? Write the expressions for the half-lives of zero-order,…

A: Half-life is the time period during which element losses half of its total initial amount. For the…

Q: Suppose that the half-life of a stimulant shot into a race horse is 28 days. Assuming the stimulant…

A: The time required for half of the reaction to break up into the original concentration is known as…

Q: Calculate the half life, in minutes, for a second order reaction with an initial concentration of…

A: • The values provided in the question are:-      i) Initial concentration of reactant, A0 = 0.45 M…

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

A:

Q: A certain substance, initially present at 0.500 M, decomposes by second-order kinetics with a rate…

A: Given: Initial concentration = 0.500 M Final concentration = 0.337 M Order of reaction = 2 And rate…

Q: A first order reaction has a half life 445.44 seconds. What is the rate constant in reciprocal…

A: The half-life of the first order reaction is 445.44 seconds. The half-life and rate constant are…

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: 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 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…

Q: The decomposition of SOCI2 is first-order in SOCI2. If the half-life for the reaction is 4.1 hr, how…

A: Given :-  Initial concentration of reactant = 0.36 M Final concentration of reactant = 0.045 M  Half…

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

A: