how much of the 111In111In will be active 15 daysdays after the injection is given?

Q: a. A 100.0 nanogram (ng) sample of sodium-24 was stored in a lead-lined cabinet for 2.5 d. How…

A:

Q: 1. The synthetic radioisotope technetium-99, which decays by beta emission, is the most widely used…

A: A numerical problem based on nuclear chemistry, which is to be accomplished.

Q: The most abundant radon isotope is radon-222, which is an alpha emitter with a half-life of 3.8…

A: Given - Half life of Radon-222 = 3.8 days            Initial level/amount 0f Rdon-222 = 500 Bq m-3…

Q: Gallium-67 is used medically in tumor-seeking agents. What is the half-life of gallium-67 if 229…

A: Time = 229 hours  Reduced activity = 13.2 %  Half life time of gallium - 67 = ?

Q: 150-water is a radioactive variation of regular water, in which some usual oxygen atoms are replaced…

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Q: If the amount of radioactive phosphorus-32 in a sample decreases from 2.4 mg to 0.30 mg in 42.9…

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Q: Technetium has not been found in nature. It can be obtained readily as a product of uranium fission…

A: 1.0 ug of 99m Tc undergoes decay, having half-life of 6.0 hours.Here we have to calculate the…

Q: Radioactive isotopes used in cancer therapy have a “shelf-life,” like pharmaceuticals used in…

A: Given data, Initial activity of 60Co = 5000 Ci Manufacturing date = October 6, 2011 Final date =…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. How…

A:

Q: Na-24 with a half life of 15h is used to study blood circulation.if a patient is injected with a…

A: GIVEN : t1/2= 15h  N0=  2.5x109d/s  t = 4 days  λ = 24 / 15 = 8 / 5

Q: 3. The half-life of 3P is t1/2 = 14.30 days. Suppose that mass of P is 32.00 amu. (a) Calculate the…

A: Radioactive decay is an example of first order reaction. In radioactive decay, the loss of energy…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. How…

A: We have to predict the time taken.

Q: Fluorine-18 is a radioactive isotope commonly used in medicine.  It has a half-life of 110 minutes.…

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Q: Technetium-99m is used in diagnostic imaging studies involvingthe brain. What fraction of the…

A: Law of Radioactive decay states that the rate of disintegration of a radioactive substance at any…

Q: A patient undergoing thyroid radiotracing was initially administered with 50.0 mg of iodine-131.…

A:

Q: Potassium-argon dating is used to measure the age of rocks formed from cooled lava by determining…

A: Given, Potassium-40 decays into 40Ca ( 89.1 % of the time ) and 40Ar ( 10.9 % of the time )  Half…

Q: A sample of cobalt-60 (t1/2=5.27 yr), a powerful γ emit-ter used to treat cancer, was purchased by…

A: Half life of radioactive element-is the time needed for given number of its nuclei to decay exactly…

Q: A blood-volume determination was carried out on a patient by injection with 20.0 mL of blood that…

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Q: Iodine-131, in a sodium iodide tablet, is used to measure the activity of the thyroid gland. If a…

A: Nuclear chemistry is a branch of chemistry which involved the study of reactions in the nucleus. The…

Q: Technetium-99 (half-life = 6.01 h) is used in medical imaging. How many half-lives would go by in…

A: a) Given t1/2 = 6.01 h 100% →6.01 h 50 % →6.01 h 25 % →6.01 h12.5 % →6.01 h 6.25 % →6.01 h 3.125 %…

Q: The half-life of Po-218 is 3.05 minutes. How many minutes does it take for a sample of Po-218 to…

A: Given: Half-life of Po-218 = 3.05 minutes. And the final amount of Po-218 isotope remaining = 2.35 %…

Q: At 8:00 a.m., a patient receives a 1.5-mg dose of I-131 to treatthyroid cancer. If the nuclide has a…

A: At 8:00 a.m., a patient receives a 58-mg dose of I-131 to obtain an image of her thyroid. If the…

Q: Fluorine-18, which has a half-life of 110 min, is used in PET scans.  If 100. mg of fluorine-18 is…

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.

Q: phosphorus-32 is a radioactive isotope with half-life of 14days. a biochemist has a vial containing…

A: The radioactive isotopes follows the first order reactions, which is dependent upon the…

Q: Nitrogen-13 is used in tracers injected into the bloodstream for positron emission tomography (PET).…

A: The half-life (t1/2) of Nitrogen-13 is provided as 10 minutes.

Q: If the half-life of Xe-133 is 5.2 h, what will be the activity of the initially 20.-mCi sample after…

A:

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium- 67 is 78.2 hours.…

A: Given   The half-life is 78.2 hours. The fall in activity of gallium-67 is 29.1 percent of its…

Q: Tc-99m is commonly used in nuclear medicine.  It has a half-life of 6 hours.  The radioactivity dose…

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

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Q: A sample of (_16^35) , a ß- emitter, has an activity of 0.100 µCi. In 20.0 days, the activity of the…

A: Given data, [A] = 0.0853 μCi[A0] = 0.100  μCit = 20 days Calculating the half-life of a sample.

Q: A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the…

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Q: A freshly isolated sample of 90Y was found to have an activity of 2.5 ×105 disintegrations per…

A: Given, A freshly isolated sample of 90Y was found to have an activity of 2.5 ×105 disintegrations…

Q: A 85.0-mg supply of iodine-131, used in hospitals in the treatment of hyperthyroidism, was stored…

A:

Q: 1. The half-life of Ga-67 is 77.9 hours. How long will it take Ga-67 to decay and lose 95% of its…

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Q: The half-life of strontium-91, is 9.70 hours. The decay constant is _____ x 10 ^-5 s^-1. For an…

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Q: A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the…

A: Given:Half-life = 15hInitial amount [A]o = 12 mCi.

Q: 5.32 A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the…

A: Initial activity of sodium-24 = 12 mCi Half-life of sodium-24 = 15 h   The question requires to…

Q: iron-59 is a radioisotope that is used to evaluate bone marrow function. The half- ife of iron-59 is…

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Q: Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of neptunium-237…

A: Exponential decay According to decay law, it calculates the amount of undecayed nuclei in a…

Q: F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical imaging,…

A: The form of energy produced due to the interaction between an electric field and magnetic field that…

Q: Given that the ratio of C/1C 13.6 counts per minute per gram living matter remains constant, if a…

A: This problem is based on radioactivity. Since all the radioactive reactions generally follows first…

Q: Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a radiotherapy…

A: The expression that relates the initial number of radioactive nuclei remaining after decay after a…

Q: Fluorine-18, which has a half-life of 110 minutes, is used in PET scans. If 100 mg. of fluorine-18…

A: Interpretation -  To determine the miligram of the radioisotope when Fluorine-18, which has a…

Q: a sampe of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the…

A: Half-life of radio active decay: This is the time in which the activity is reduced to half of its…

Q: Fluorine-18 is a radioactive isotope use in a variety of medical imaging procedures including…

A: Half-life of 18F isotope = 1.83 hours

Q: A sample of sodium-24 with an activity of 12 millicuries (mCi) is used to study the rate of blood…

A: Radioactive reactions are first order reaction. Initial activity of Sodium-24, No = 12 mCi Half life…