Radioactive gold-198 is used in the diagnosis of liver problems. The half-life of this isotope is 2.7 days. If you begin with a 5.6-mg sample of the isotope, how much of this sample remains after 1.0 day?

Q: 14) Dilute hydrogen peroxide in water, 3% (mass/mass), is sold over the counter to sterilize wounds.…

A: 14. Half-life of a reaction is the time in which half of the reaction completes. This means that the…

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: The Hydrogen isotope, tritium, is radioactive and has a half-life of 12.5 years. What percentage of…

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Q: Two gases X and Y are found in the atmosphere in only trace amounts because they decompose quickly.…

A: Given, held life of X is 1.5 h and y is 135 min  Partial pressure of X is 75% greater than Y

Q: For which order of reaction is the half life independent of the initial concentration of the…

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Q: 43.  Both technetium-99 and thallium-201 are used to image heart muscle in patients with suspected…

A: The half-life and the final concentration of a reaction is related as :

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: The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial…

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Q: What is the half-life when the initial concentration is 0.58 M ? Express your answer using two…

A: The graph between the 1/[AB] vs time is a straight line, confirms that the reaction is a…

Q: The half-life for the radioactive decay of C-14 is 5730 years and is independent of the initial…

A: Rate constant is calculated using given half-life value:

Q: 2. Iron-59 in the form of iron (II) citrate is used in iron metabolism studies. Its half-life is…

A:

Q: 4. (a) The radioactive isotope 32P has a half-life of 14.3 days. If a sample contains 0.884 g of…

A: Half life of P-32 isotope = 14.3 days = 1235520 sec 22 days = 1900800 seconds

Q: Both technetium-99 and thallium-201 are used to image heart muscle in patients with suspected heart…

A: The half-life and the final concentration of a reaction is related as:

Q: What percentage of the radioactive iodine-131 will be left after 25 days if its decomposition…

A: In first-order kinetics, the rate of reactions of chemical reactions are dependent on one of the…

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: What is the half-life for the first-order decay of carbon-14? (146C⟶147N+e−)(614C⟶714N+e−) The rate…

A: Rate constant for the decay (k) = 1.21×10-4 year-1

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

A: Radioactive disintegration reactions are first order reactions. Half life of first order reaction is…

Q: Another radioisotope of iodine, ¹³¹I, is also used to studythyroid function . A patient isgiven a…

A: The Radioactive decay of ¹³¹I follows a first order kinetics. The half life for a first order…

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: The half-life of radium-226 is 1.60x103 yr. How many hours will it take for a 5.00-g sample to decay…

A: Given: Initial mass of radium = 5.00 g Final mass of radium remaining = 0.185 g And half life of…

Q: Both technetium-99 and thallium-201 are used to image heart muscle in patients with suspected heart…

A: Radioactive decay follows the first-order kinetics. The decay constant (λ) and half-life of a…

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: he half-life for the radioactive decay of C-14C-14 is 5730 years. a) How long will it take for 25 %…

A: Radioactive decay is a spontaneous break down of an atomic nucleus, it follows first order kinetics…

Q: 5) Cesium 137 is a radioactive element that was released into the Atmosphere during the Chernobyl…

A: Half life of a radioactive material is the time taken by a radioactive material to reduce to its…

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: A first order decomposition reaction has a half-life of 60.1 yr. What percentage of the original…

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Q: Scientists working in Lake Kissimmee calculating half-lives of pollutants called volatile organic…

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Q: A radioisotope of technetium is useful in medical imagingtechniques. A sample initially contains…

A: The rate constant for the decay is calculated as shown below where [A]o is the initial amount and…

Q: What is the integrated rate law for this decay process? The decay of radioactive copper-64 follows…

A: Given: The kinetics follow first-order. And the half-life = 12.8 hours.

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: Two gases X and Y are found in the atmosphere in only trace amounts because they decompose quickly.…

A: Yes, The gases are being decomposed, so their partial pressure is decreasing. The partial pressure…

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

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Q: Since radioactive decay is a first-order process, the decay rate for a particular nuclide is…

A: Molar mass of KCl = 74.55 g /mole Mass of KCl = 1 g Moles of KCl = MassMolar mass=1 g74.55…

Q: NO + O3 > NO2 + O2, k=3.22x1017 cm² s' and [NO]=1.477×10" molecules cm³, what is the half-life of O3…

A: The half-life of a reaction is the time taken by the concentration of the sample to reduce to 50%.…

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

A:

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

A:

Q: A certain signal molecule S in brain tissue is degraded by two different biochemical pathways: when…

A: Half life is the time taken for a radioactive material to decay to half of its initial size.

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

A:

Q: 0.1 M of a material has a decomposition rate constant (k) of 2.46×105 M-1 s-1. What equation would…

A: Given, [A]o = 0.1 M  K = 2.46 x 105 M-1 S-1  Formula used : t1/2 = 1/K [A]o

Q: The half-life for the radioactive decay of C-14C-14 is 5730 years. If a sample of C-14C-14…

A: For a radioactive decay rate constant K and half life t12 have the following relation. t12=0.693K…

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

A:

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

A:

Q: The isotope strontium-90 is one of the extremely hazardous species in the residues from nuclear…

A: First order reaction- the reaction whose rate is depends on only single reaction whose concentration…

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

A:

Q: The rate constant for the decay of a radioactive isotope is 4.234 x 103/day. What is the half-life…

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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: 8. Determine the half-life of an anti-hypertensive'drug if it appears to be eliminated from the body…

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Q: The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial…

A: Radio-active decay follows first order kinetics. The integrated rate equation for the first order…

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

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.