The half-life of the radioactive isotope phosphorus-32 is 14.3 days how many days required to loss75% of its radioactivity

Q: The half-life of the radioactive isotope 137Cs is 30.17 years. How long does one have to wait until…

A: To solve this problem we have to first calculate the rate constant of the reaction using half life…

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.…

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Q: At an archaeological site, several well- preserved items made from wood were found. The carbon-14…

A: The objective of this question is to determine the age of the wooden items found at an…

Q: The half-life of a radioactive element in the first order reaction is 45 minutes .How long will it…

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Q: 1311, used to treat thyroid cancer, has a first order half-life of 6.99 × 105 s. How long does it…

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

Q: Calculate the half-life of a radioisotope if it decays to 12.5% of its radioactivity in 12 years.

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Q: Strontium-90 is one of the radioisotopes released in the Chernobyl nuclear plant accident. The…

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

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Q: The radioisotope strontium-90 has a half-life of 38.1 years. If a sample contains 40 mg of Sr- 90,…

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Q: Potassium 40 has a half-life of 1.28 × 10⁹ years. K-40 decays to only Ar-40 which is stable. No…

A: Answer:Here:

Q: If the amount of radioactive sodium-24, used for studies of electrolytes within the body, in a…

A: Given information:Initial concentration = 1.6 mgFinal concentration = 0.2 mgTime = 45.0 hours

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 half life for the radioactive decay of potassium-40 to argon-40 is 1.26 x 10 years. Suppose…

A: Calculation

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

A: The half-life of a reaction is the time taken for the reactant to reduce to half its initial value…

Q: The half-life of the radioactive element plutonium-239 is 25,000 years. If 16 grams of plutonium-239…

A: Rate of a reaction determines the speed with which a reaction proceeds. First order reaction is a…

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

A: Half-life of X = 15 minHalf-life of Y = 1.00 h = 60 minThe partial pressure of X is 2 times greater…

Q: The first-order decay of thallium-201 is used to image heart muscle in patients with suspected heart…

A: The half-life of the thallium-201 is = 73 h The percent reactivity of the thallium-201 after 48 h is…

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 10 years. Suppose…

A: The half-life for the radioactive decay of rubidium-87 to strontium-87 t12 = 4.88 × 1010 years There…

Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A: Radioactivity follows First order reaction.   For First order reaction : t1/2 = 0.693k where, t1/2 =…

Q: What mass of radioactive radium-226 has been lost from an original sample of 20.0 g of radium-226…

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Q: The radioactive nuclide 170Ta undergoes first-order decay with a half-life of 6.76 min. If a…

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Q: Vhich of the following is the half-life ( in days Jof a radioisotope if it decays to 10.5% of its…

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Q: If the first-order half-life of tritium (³H) is 12.26 years, what amount of time is necessary for it…

A: Given data : half-life of tritium (³H) is 12.26 years Let the initial amount be x. Also given that,…

Q: The half-life for the first order radioactive decay of 14C is 5730 years. An archeological sample…

A: The breaking down of atomic nuclei releases the energy and matter from nuclei. This process is named…

Q: The age of water samples or aqueous solutions can be determined by determining the radioactive…

A: see attachmentExplanation:Step 1: Step 2: Step 3: Step 4:

Q: cer, has a first order nail-life of 6.77 x 10 S. HOW used to treat thyroid long does it take for the…

A: Half life of first order reaction is independent of concentration

Q: half-life

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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: Given:Half-life of X = 105 minHalf-life of Y = 1.25 hrThe partial pressure of X is 5 times greater…

Q: Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life…

A: The initial amount of Chromium-51 (No) = 54.8 mgThe half-life period of Chromium-51 (t1/2) = 27.7…

Q: Scientists can determine the age of ancient objects by the method of radiocarbon dating. The…

A: Half life of C-14 = 5730 years  Final quantity (Qt) = 74% of initial   Qt = 0.74 Q0 WWe have to…

Q: The isotope Cesium 137, which has a half-life of 30 years, a product of nuclear power plants. How…

A: Here it is required to find the time needed for a radioactive isotope of cesium-137 to decay to…

Q: What is the half-life (in y) of a radioisotope if it decays to 25% of its radioactivity in 13.5…

A: The formula for radioactive decay constant of a radioactive reaction is as follows :- k = 2.303t log…

Q: Phosphorus-32 is used in biochemical studies to follow the pathway taken by metabolites. Its…

A: (a) All the radioactive reactions are first order, thus, value of rate constant can be calculated…

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

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Q: Strontium-90 is one of the radioisotopes released in the Chernobyl nuclear plant accident. The…

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Q: Geologists can estimate the age of rocks by their uranium-238 content. The decay of U-238 is…

A: The question is based on the concept of chemical kinetics. we need to calculate age of the given…

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

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Q: A certain drug has a half-life in the body of 5.5 h. What should the interval between doses be, if…

A: First of all we calculate the rate constant by using half life of the Reaction. And then by help of…