The recombination reaction 2 HO2(g) → H2O2(g) + O2(g) has a second-order rate constant of 2E9 M-1 s-1. Calculate the half-life of the reaction if the initial concentration of HO2(g) is 2.58E-11 M. Note: the coefficient 2 in the reaction means that the integrated rate law for this reaction is: 1/ct = 1/c0 + 2kt

Q: The radioactive element, thallium – 201, is used medicinally as a radiotracer to study damage in…

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Q: 4. The effect of heat on the decomposition of drug A was evaluated at two temperatures; 25 and 40°C.…

A: Given: Temperature, T1 = 250C = (25+273.15)K = 298.15 K Another temperature, T2 = 400C =…

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

A: Given:Initial concentration = 1.1 μg/mLTime = 268 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: 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…

A: The half-life of the first-order reaction does not depend on the initial concentration of the…

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

A: Half life ( t1/2 ) for a first order reaction is,     t1/2  =  0.693 / k k = rate constant…

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: Half-life equation for first-order reactions: t1/2=0.683k  where t1/2 is the half-life in seconds…

A: The half-life for first order reaction is calculated using the given formula,

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

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Q: In aqueous solution buffered at a pH of 6.75 Penicillin G (molecular weight of 334.39 g/mole)…

A:

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…

A: According to first order kinetics- [A] = [A]° ekt

Q: The recombination reaction 2 HO2(g) → H2O2(g) + O2(g) has a second-order rate constant of 2E9 M-1…

A: Given Reaction =>                2 HO2 (g)   ->    H2O2 (g)  +  O2  (g)  It follow second…

Q: The uncoiling of deoxyribonucleic acid (DNA) is a first-order reaction. Its activation energy is 420…

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Q: What is the activation energy in kJ/mol for this reaction?

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Q: The reaction, A2(g) + BC(g) ---> AB(g) +AC(g), is found to be second order in A2 and sero order in…

A: The rate law is an expression showing the relationship of the reaction rate to the concentrations of…

Q: A water tower containing 4000 m³ of water that contained an initial concentration of free chlorine…

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Q: Derive an expression for the t½ (half-life time) for a 1st order reaction, starting with the…

A: First Order Reaction:- A ----> P Rate,r = -d[A] / dt Integrated rate law:- -d[A] / dt = k[A]…

Q: The reaction SO2Cl2 (g) → SO2 (g) + Cl2 is first order in SO2Cl2. Using the following kinetic data,…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

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: The hydrolysis of the sugar sucrose to the sugars glucose and fructose follows a first-order rate…

A: The convergences of glucose, fructose, and sucrose after a 0.150  M watery arrangement of sucrose…

Q: Cesium-131 is the latest tool of nuclear medicine. It is used to treat malignant tumors by…

A: Given T1/2 = 9.7 days Initial concentration = 20 mg.

Q: Normally, DNA has the familiar double helix coiled configuration. The uncoiling of DNA is a 1st…

A: Using the given half-life period, rate constant, k can be determined.

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

A: The expression of half-life (t1/2) for a first-order reaction is: t1/2=0.693k······(1) Here, k is…

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

A: Given:Rate constant=1.45yr-1.Initial concentration of the insecticide in the lake…

Q: Laser flash photolysis is often used to measure the binding rate of CO to haem proteins, such as…

A: From the given reaction it is clear that the concentration of [CO] is much greater than the…

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

A: Since it is a first order reaction, then the relationship between rate constant and half-life period…

Q: The estimated half life for P—O bonds Is 1.3 x 10^5 a ( 1 a is the SI unit 1 annum for 1 year).…

A: Given: half-life for P—O bonds is 1.3 × 105 year The question is how long would a single strand of…

Q: The first-order rate constant for the decomposition of a certain antibiotic in water at 20oC is 1.65…

A: According to the first order reaction,k=1tlna0ak=rate constantt=timea0=initial…

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: In aqueous solution buffered at a pH of 6.75 Penicillin G (molecular weight of 334.39 g/mole)…

A: This is a pseudo first order reaction, so we will calculate according to pseudo first order…

Q: A certain second-order reaction (B→products) has a rate constant of 1.50×10−3 M−1⋅s−1 at 27 ∘C and…

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Q: How long would it take for a first-order reaction with a rate constant of5.30 X 10-4 s-1 to reach…

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Q: The recombination of l atoms in the gas phase in the presence of argon (which removes the energy…

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Q: A compound decomposes by a first order process. If 25.0 % of the compound decomposes in 60.0…

A: Answer: Half life of the compound is 145 min.

Q: Radioactive decay of 212Bi is observed to be a first-order process with a half-life (t½) of 4.00…

A: Given values -> Half life (t1/2)= 4.00days ->For first order reaction    K =0.693/ t1/2

Q: O3Ni decays by a first-order process via the emission of a beta particle. The 63NI isotope has a…

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Q: What is the half life of a picloram if upon plotting the experimental data it is linear and 1st…

A: Rate constant k = 1.7 × 10-2 / day  We need to find half life.

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 = 60 mins Initial concentration of drug = 1.0…

Q: 5. The first-order rate constant for hydrolysis of a certain insecticide in water at 12° C is 1.45…

A: A) Given  rate constant, k = 1.45 year-1 initial concentration, [Ao] = 5.0 x 10-7 g/mL concentration…

Q: In an enzyme-catalyzed 1st order process, a substrate has a half-life of 138 seconds. How long will…

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