A new element is discovered. It decomposes at rate = k[X]^3 If the half life is 4 hours and the concentration is 16 micromolar, what is the rate constant in 1/M^2*s

Q: The first-order radioactive decay of iodine-131 exhibits a rate constant of 0.138 d−1. What is the…

A: Like chemical reactions, nuclear reactions are type of chemical reaction only but here in place of…

Q: A particular reactant decomposes with a half-life of 159 s when its initial concentration is 0.288…

A: In a zero order reaction, half life is proportional to the initial concentration reactant. In a…

Q: Phosphorus-32 has a half-life of 14.3 days. What is the first-order rate constant for the decay of…

A: Chemical kinetics is the branch of chemistry that mainly deals with the rate of reaction and change…

Q: used to treat thyroid cancer, decays with a first-order half-life of 6.99 × 105 s. How long does it…

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Q: 2) The radioactive decay of 14C is a first order process with a half life of 5730 years. If the…

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Q: Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has…

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Q: Consider a radio active material with a half-life time of 30 years following first order reaction.…

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Q: The radioisotope tritium decays with a first-order rate constant k of 0.056 year−1.  What fraction…

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Q: The rate constant for the decay of a radioactive isotope is 3.1x 103/day. What is the half-life of…

A: Given is a radioactive isotope with rate constant = 3.1×10–3/day . We need to find the half life of…

Q: 1. Deoxyglucose labeled with 18F is commonly used in PET scan to locate tumors. The half-life of 18F…

A: In this question, we want to determine the time for the level of 18F in the body when it's drop from…

Q: The radioactive decay follows first-order rate law and for the radioisotope, Sr-90. its half-life…

A: Given: t12=28 years% of sample decompoed=87.5% To find Time for sample to decompose

Q: 140Ba decays via first-order kinetics (as do all radioactive isotopes) and has a half-life of 12.75…

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Q: The rate constant for the decay of a radioactive element is 1.88 x 103 day1. What is the half-life…

A: Given that the decay constant of radioactive element is 1.88×10-3 day-1 To determine the half-life…

Q: What is the half life for the first order decay of phosphorus-32? The rate constant for the decay is…

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Q: he activation energy, Ea, for a particular action is 13.6 kJ/mol. If the rate constant at 54 °C is…

A: Activation energy = 13.6kJ/mol

Q: The rate constant for the decay of a radioactive element is 2.44 x 10 ^-3 day^-1. What is the…

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Q: If the half-life of your sample is 5,000 years, calculate the value for k, the rate constant. Be…

A: Introduction : We have to calculate the rate constant of the given radioactive particle. Given :…

Q: The rate constant for the decay of a radioactive element is 1.76 × 10⁻³ day⁻¹. What is the half-life…

A: Rate constant = 1.76×10^-3 day^-1 Decay of radioactive element is first order reaction

Q: Radioactive phosphorus is used in the study of biochemical reaction mechanisms because phosphorus…

A: given, 3215P → 3216S + e- rate = 4.85×10-2 day-1 [ 32p] concentration of phosphorous,  [ 32p] =…

Q: What is the half-life of this element in days?

A: Given :- rate constant (k) = 5.29 × 10-3 day-1  To calculate :-  Half life Radioactive decay…

Q: Tritium is radioactive and decays by a first order process with a half-life of 12.5 yr. If an…

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Q: Suppose the order is 1.5G IV q4h starting immediately. If the drug has a half life of 4 hours, what…

A: The meaning of the term 1.5G IV q4h is 1.5 gram of medicine taken intravenously, every 4…

Q: The half-life of a chemical substance is 5 days. How long does it take for 1.3 Kilograms of the…

A: For first order  t = 1/K × { ln Co/Ct }

Q: The half-life of Cobalt-60 is 5.3 years. What is the value of the rate constant of Cobalt-60 in 3…

A: Radioactive decay follow first order kinetics. For first order reaction  Rate constant = 0.693/half…

Q: 22. The half life of a first order reaction is 1 year. What is the time taken for 75% of the…

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Q: What is the first order rate constant for ²⁴⁰Pu?

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Q: The rate constant for the decay of a radioactive element is 2.55 × 10-3 day-1. What is the half-life…

A: Given data,rate constant=2.55×10-3day-1

Q: strontium-8 is a readioactive maker used in scanning for bone disease including cancer that decays…

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Q: What is the half-life for the first-order decay of phosphorus-32? (P – decay is 4.85 x 10-2 day¬!.…

A: Given- Rate constant for the decay, k = 4.85 × 10-2 day-1Order of reaction = 1st order To find- The…

Q: The decomposition of a radioactive isotope follows first order rate law kinetics. Calculate the…

A: Radioactive decay follows the first-order kinetics. The half-life of the first-order reaction does…

Q: fk = 3.84 x 104 mol-1 Ls-1 and the initial concentration of A is 0.77 mol L-1, what is the half life…

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Q: The rate constant for the decay of a radioactive element is 4.18 × 10⁻³ day⁻¹. What is the half-life…

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Q: Radioactive gold-198 is used in the diagnosis of liver problems. The half-life of the isotope is 2.7…

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Q: 3. The rate constant for the reaction of A₂ → 2A is 5.72 x 10⁰ a. If the initial concentration of A₂…

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Q: 5. The half-life of 4Po is 0.16 s. How long would it take to reduce a sample of it to the negligible…

A: In a chemical reaction, the half-life (t 1/2) of a species is the time it takes for the…

Q: The rate of radioactive decay follows first order kinetics. Uranium-238 decays very slowly with a…

A: Given,  Half-life period (t1/2) = 4.47 billion years  Time period = t = 13.4 billion years What is…

Q: A radioisotope has a half-life of eight hours. If a patient has been given an 120 ng dose, the…

A: Given that, Half-Life of Radioisotope ( t12)= 8 hours Initial concentration of Radioisotope (a) =…

Q: Radioactive decay occurs following first order kinetics. If the half-life of a sample of Cl-36 is…

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Q: 2. The rate of the reaction between hemoglobin (Hb) and carbon monoxide (CO) was studied at 20°C.…

A: a.

Q: Using time units of hours, what would the units for K be for a reaction that is 1 1/2 order?

A: The explanation is given below-

Q: 20.77. The nitration of methanol, CH;OH, by nitrous acid is thought to proceed via the following…

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Q: 22. The half life of a first order reaction is 1 year. What is the time taken for 75% of the…

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Q: 37.  What is the half-life for the first-order decay of carbon-14? (614C⟶714N+e−) The rate constant…

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Q: what is the value of the rate constant, k in s-1?

A: Given :- t1/2 = 3.0 × 105 years  To calculate :- k (in s-1)    t1/2  = 0.693/k  So, k = 0.693/t1/2

Q: The rate constant for the decay of a radioactive element is 2.76 × 10-3 day1. What is the half-life…

A: When an unstable nucleus loses their energy by the radiation is known as radioactive decay.

Q: 4. The fluorine-18 isotope is radioactive (decays by positron emission). It is used in in the form…

A: Radioactive decay follows first order kinetics, so radioactive decay has rate law similar to that of…

Q: Radioactive Decay is a first order process. In 1911 , maria curie prepared a n international…

A: Radioactive Decay is a first order process. In 1911, Maria curie prepared an international…

Q: 2. A suspension (125mg/mL) decays with a reaction rate constant of o.5 mg/mL·hr. What is the…

A: Suspension decay obey zero order kinetic I.e. rate of reaction is independent of the concentration…

Q: The rate constant for the radioactive decay of 14C is 1.21 × 10-4 year-1. The products of the decay…

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Q: The rate constant for the decay of a radioactive element is 6.66 x 10-3 day-. What is the half-life…

A: Given- Rate constant for the decay of a radioactive element= 6.66×10-3day-1

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.