Nitrogen-13 is used in tracers injected into the bloodstream for positron emission tomography (PET). The half-life of nitrogen-13 is 10.0 minutes. If you begin with 48.2 mg of this isotope, what mass remains after 29.5 minutes have passed? mg

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

A: Answer : Since radioactivity follows first order kinetics . Given : Half life = 14.3 days . Initial…

Q: Copper-64 is used in the form of copper acetate to study brain tumors. It has a half-life of 12.8…

A: Since we know that radioactive decy follow first order kinetics  So to solve this problem we will…

Q: The half-life of the radioactive isotope astatine-218 is 2.00 seconds. How long will it take for the…

A: all radioactive reactions are first order.  Here first calculate the rate constant with the help of…

Q: Gadolium-153, which is used to detect osteoporosis, has a half life of 242 days. What percentage of…

A: Radioactive decay follows first order kinetics.Equation for half life, t½ = ln2 / kTherefore k = ln2…

Q: Iodine-123, which is used for diagnostic imaging in the thyroid, has a half-life of 13 hours. If…

A: Given 50mg of Iodine-123 was prepared at 8AM Monday, the remaining grams present at 10AM of next day…

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

A:

Q: Technetium-99 has been used as a radiographic agent in bone scans (9943Tc is absorbed by bones). If…

A: Radiographic process follow first order:Total no. of hours in 2 - days = 2 x 24 hours…

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

A:

Q: 6. Iodine – 131 is used in the form of sodium iodide to treat cancer of the thyroid. The isotope has…

A: half - life = t1/2 = ln 2λ Given that,t1/2 = 8.04 days Ao = 25 mg t = 32.2 days

Q: Strontium-90 is present in the fallout produced by nuclear weapons testing in the atmosphere. Sr-90…

A:

Q: Iodine-131 is administered orally in the form of Nal(aq) as a treatment for thyroid cancer. The…

A:

Q: gold -198 is used in the diagnosis of liver problems. the half-life of 198au is 2.69 days. if you…

A: Calculating the rate constant for first order reaction using half-life: t1/2=0.693k     .....(1)…

Q: Technetium-99 has been used as a radiographic agent in bone scans (9943Tc is absorbed by bones). If…

A: The half-life period is the time taken by one half of the radioactive substance to decay or…

Q: Americium-241 is widely used in smoke detectors. The radiation released by this element ionizes…

A: The activity for the sample can be described as the amount of the radioactive particles are…

Q: Gold - 198 is used in the diagnosis of liver problems. The half-life of^198 Au is 2.69 days. If you…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: what mass remains after 28.5 days have passed?

A:

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) = 30.8 mg The half-life period of Chromium-51 (t1/2) = 27.7…

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

A:

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

A:

Q: The radioactive isotope, used in the diagnosis of tumors, has a biological half-life of 47 hours. If…

A: Given  Half life ( t1/2 )         = 47 hour  Time ( t )                  = 26 hour  initial quantity…

Q: PLutonium-239, one of the radioactive by-products of nuclear power, represents a serious was…

A: Chemical kinetics is the study of the reaction that how fast or slow a reaction is taking place. The…

Q: " Ca is used in the study of bone formation. The half-life of Ca is 4.54 days. If you begin with…

A:

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

A: Given: The half life, (t1/2)=27.7 days. The initial concentration of Cr-51=28.7 mg 981

Q: The half-life of protactinium-234 is 6.69 hours. What fraction of a given amount remains after 26.76…

A:

Q: Q#3 Iodine-123, used in the treatment of thyroid, brain, and prostate cancer, has a half-life of…

A: Given :  Half life(t1/2) = 13.2 hr  Given time (t) = 26.4 hr  Mass of sample = 64 mg  t1/2=0.693K…

Q: Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The…

A:

Q: Strontium-90, a beta emitter, has a half-life of 28.1 yr. If 29.1 mg of 90Sr were incorporated into…

A:

Q: Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The…

A:

Q: Cesium-137 is part of the nuclear waste produced by uranium-235 fission. The half-life of…

A: Half-life of Cs-137 and initial mass, from which amount of Cs-137 left after 90.6 years.

Q: (Q114) A meteorite recovered from a meteor landing site in the Australian outback contains 0.438 g…

A: we have to calculate the age of meteorite

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

A:

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

A:

Q: Isotope X has a half-life of 71.8 years. If a sample initially contains 676. mg of X, what mass of X…

A:

Q: Phosphorus-32 is a radioisotope used to detect certain types of tumors. P-32 has an effective…

A: Phosphorus-32 is a radioisotope used to detect certain types of tumours. P-32 has an effective…

Q: Iron‑59 is used to study iron metabolism in the spleen. Its half‑life is 44 days.44 days. How many…

A: The time will take a 28.0 g28.0 g sample of iron‑59 to decay to 1.75 g has to be calculated

Q: A nuclear power plant emits into the atmosphere a very small amount of krypton-85, a radioactive…

A: Given: Half life (t1/2) = 10.76 years  Total time (T) = 25 years

Q: Copper(II) acetate containing copper-64 is commonly used to study brain tumors. This isotope has a…

A: The half-life of an isotope is defined as the time required for a quantity to reduce into half. It…

Q: If a tree dies and the trunk remains undisturbed for 1.620 x 104 what percentage of the original 1*C…

A:

Q: Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in…

A: The loss of elementary particles from an unstable nucleus results in the transformation of the…

Q: 9) U-235, one of the nuclides in spent nuclear reactor fuel, has a half-life of 703 million years.…

A: Recall the following expression to calculate required time for U-235 to be reduced to 3% of this…

Q: The half-life of I-131 is 8.0 days. If a medical treatment involves a dose of 100. mg of I-131, how…

A: The remaining I-131 isotope after 16 days is calculated as shown below. where t1/2 is the half-life,…

Q: Strontium-90 (90Sr) is a radioactive isotope with a half-life of 28.8 years. What percentage of this…

A: The radioactive disintegration falls in the type of first-order kinetics where reaction rate…

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

A: The half-life is the time taken for the reaction to complete half of its original concentration

Q: 186 Re is used in the treatment of bone cancer. The half-life of 18° Re is 3.72 days. If you begin…

A:

Q: Iodine-131 is often used in nuclear medicine to obtain images of the thyroid  If you start with…

A: Half-life is the time required for a quantity to reduce to half of its initial value. we represent…

Q: Iodine-131 is a radioactive isotope. After 2.00 days, 84.2% of a sample of 13I remains. What is the…

A: Iodine- 131 is an radioactive isotope. Time = 2 days Final concentration of 131l  = 84.2% of sample…

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.