The first-order decay of radon (Rn) has a half-life of 3.823 days. How many grams of Rn will have decomposed after 133.2 hours if a Rn sample initially weighed 100.0 g? (a) 83.4 g (b) 16.6 g (c) 50.0 g (d) 63.4 g

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 for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 10" years. Suppose…

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: 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: What is the ½-life of a radioisotope if it decays to one eighth of its radioactivity in 66.0 years?…

A:

Q: Phosphorus-32 is a radioactive isotope used as a tracer in the liver. How much phosphorus-32 was…

A: Radioactive decay reactions are first order reaction. Since we know that the relationship between…

Q: A certain drug has a half-life in the body of 7.5 h. What should the interval between doses be, if…

A: Since the drug is being decayed in the body  And as all the decay reactions are first order in…

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

A: Provided half life(t1/2) =4.88×1010 year Initial concentration (A•)= 1×10-3 moles Final…

Q: (d) How long does it take for 90% of a given quantity of the radioactive element cobalt-60 to decay,…

A:

Q: Radioactive phosphorus-32 decays to form sulfur-32 by emission of a β particle. Estimating the…

A: The radioactive phosphorus-32 decays to form sulfur-32 by emission of a β particle. The half-life of…

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 × 10³ years. Suppose…

A:

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

A:

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

A:

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

A: Calculation

Q: Iodine-131 is a radionuclide that is frequently used in nuclear medicine. Among other things, it is…

A: We have to predict the amount of iodine left

Q: You are on a geology field trip to the La Brea Tar Pits, and you find a jaw bone from a…

A:

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

A:

Q: The half-life of the radioactive isotope polonium-214 is 1.64x104 seconds. How long will it take for…

A:

Q: Part A The radioactive isotope 133 Xe is used in pulmonary respiratory studies to image the blood…

A: I don't know how much detail you want for this, but the simplestequation to use iswhere τ1/2 is the…

Q: Cobalt – 60 used in cancer therapy, decays by beta and gamma emission. The decay constant is…

A: Consider the given information is as follows; Decay constant λ = 4.18×10-9/s Half-life t12 = ?

Q: Plutonium-239, a common product of a functioning nuclear reactor, can be deadly to people exposed to…

A:

Q: ) A human bone uncovered in a burial site in Majorca, Spain by a student working for the pollentia…

A: Given, Rate constant of decay of  of C-14, K=1.2094×10-4yr-1

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

A:

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

A:

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

A: Radioactive decay follows first order kinetics. Half life(t1/2) = 4.88 x 1010 years hu

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10 years. Suppose…

A: Given that, the half-life (t1/2) for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 * 103…

Q: What is the half-life of N2O5 at 70∘C?

A: For first order reaction, t1/2 = 0.693/k where t1/2 = half life of the reaction k = rate constant…

Q: An isotope of thorium, 227Th, has a half-life of 18.4 days. How long will it take for 83% of the…

A: The correct answer of the question is given below

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10 years. Suppose…

A: Radioactive decays are first order reactions. Here, beta decay occurs to convert carbon-14 to…

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 1010 years. Suppose…

A: Radioactive decay follows 1st order reaction kinetics. So it follows the equation of 1st order…

Q: The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remains after 9.50…

A: First of all let's see the given data in the question, Half-life of cobalt-60 ( t1/2 ) = 5.20 years…

Q: Tritium,3 1 H , an isotope of hydrogen has a half-life of 12.33 years. Its decay constant in years-1…

A: Halflife of Tritium , t1/2 = 12.33 years Decay constant , k = ?

Q: The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remain after 9.50…

A: Given information,     The half-life of cobalt-60 is 5.20 yr.     Mass of sample 2.000-mg     Time…

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: The half life for the radioactive decay of carbon- 14  to nitrogen- 14  is  ×5.73103  years.…

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

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: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10 years. Suppose…

A: calculation of age of the rock half life of C-14 is given Amount of N-14 and C-14 is given

Q: The bromine isotope Br-75 is used for imaging in positron emission tomography. Br-75 has a half-life…

A: Half life of Br- 75 ( t1/2 )         = 57 hour  Suppose initial amount [ A ]0 = 100 %  Remaining…

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

A:

Q: The radioactive isotope Pu-238, used in pacemakers, has a half-life of 87.7 years. If 1.6 milligrams…

A:

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10° years. Suppose…

A: Given: 1.  The half-life of radioactive decay of carbon-14 to nitrogen-14 2. C-14 forms N-14…

Q: A certain drug has a half-life in the body of 7.5 h. What should the interval between doses be, if…

A: Here we will consider the reaction to being first order, and need to find the time at which the…

Q: A sample of a newly discovered element, West Virginium, has been discovered.  A 167 mg sample has…

A: We will use first order kinetics to solve this question.

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

A: This is a first order reaction and hence the half life is, t1/2 = 0.693/k

Q: The radioisotope sodium-24 is used to determine the levels of electrolytes in the body. A 16microg…

A: The term half life can be defined as the time taken by a given quantity to reduce to half of the…

Q: The half-life of element X is 500 years. If there are initally 8g of X how much will remain after…

A: The half-life of an element is the time it takes for half mass of the element to decay.

Q: Both technetuim-99 & thallium-201are used to mage heart muscle in patients with suspected heart…

A: Radioactive decay is a first order reaction. So we would calculate the percent of both of the…

Q: A certain drug has a half-life in the body of 7.5 h. What should the interval betv 60.% of its…

A: Since the drug is being decayed in the body  And as all the decay reactions are first order in…

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

A:

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.