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 445 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: Assuming first-order kinetics, if it takes 1200 hours to reduce a substance to 12.5% of its 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: Since the decay process is first order  Hence we can say that  A = A0eKt  where A = final…

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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: 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…

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

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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: The decomposition of A to B is a first-order reaction with a half-life of 13.1 min: A → 2B If the…

A: Given : The reaction is a first order reaction. Half life of reaction = 13.1 min Initial…

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 hydrolysis of table sugar (sucrose) occurs by the following overall reaction sucrose + water →…

A: HYDROLYSIS: A chemical reaction in which chemical bonds in water molecules are cleaved to form one…

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: A certain reaction follows a 3rd order reaction. In an experiment, starting with 100 ppm, it was…

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

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

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Q: Americium-241 is used in smoke detectors. It has a first-order rate constant for radioactive decay…

A: Given:  First order rate constant K=1.6×10-3 yr-1 Rate constant for the decay of iodine k=0.011…

Q: In a first-order reaction, the half-life is 133 minutes. What is the rate constant?

A: What are first order reactions? Assume a sample reaction- nA→Product So, first order reactions are…

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

A: Given the first-order reaction: 2N2O5 → 4NO2 + O2   The integrated-rate law equation for studying…

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

A: DDT decomposes following the first-order kinetics. Half-life =12.0 yr Initial concentration, [A]o…

Q: The hydrolysis of table sugar (sucrose) occurs by the following overall reaction sucrose + water →…

A:

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

A:

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

A:

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…

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