Phosphorus-32 is used in biochemical studies to follow the pathway taken by metabolites. Its half-life is 14.3 days. A vial containing 10.0 micro grams of P-32 is accidentally spilled into a sink. (a) How long will it take P-32 in the drain to exhibit 68% of its original activity? (b) How many atoms of P-32 remain in the sink after 755 days?

Q: Polonium-209, an α� emitter, has a half-life of 102 years.How many α� particles are emitted in 2.0…

A: Mass = 1.8 ng Time = 2 s Half life = 102 years

Q: Another way to produce gold is through the neutron bombardment of platinum-196. This reaction…

A:

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

A: Given data, Half-life = 1.26 × 109 years At the time of analysis, amount of argon-40 = 0.716 mmol…

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A: Radioactive decay follows first order kinetics.  So, k = 0.693/t0.5 = 0.693/100 (1 century = 100…

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

A:

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

A:

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

A: Given : Half life of potassium-40 = 1.26 X 109 years. Moles of argon-40 = 0.543 mmol. And moles of…

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

A:

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: Assume the half-life of a substance is 29 days and the initial amount is 139.399999999998 grams. (a)…

A: Given data is The half life of the substance =  29 days Initial amount of the substance =…

Q: An atomic isotope radioactively decays and has a half-life of 23.7 days. How many days will it take…

A: In order to solve this question, we will follow the rule that all radioactive disintegration decays…

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

A:

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

A:

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A: Half life = 1 century

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 measuning phosphorus uptake by plants. The…

A:

Q: A paleontologist has unearthed a bone, and want to carbon date it by measuring  the amount of…

A:

Q: Tritium, ³H, is radioactive, decaying by electron emission with a half-life of 12.5 years. In…

A: Moles = mass / molar mass

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A: Given data: t1/2=100 years , No= 100 , N= 67

Q: Uranium-238 forms thorium-234 after radioactive decay and has a half-life of 4.5 x 10^9 years. How…

A:

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

A:

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A:

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

A:

Q: ntage of: be expe

A: Given: The half life of 14 C is given as 5730 years.

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: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73x 10^3 years. Suppose…

A:

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

A:

Q: A certain drug has a half-life in the body of 5.0 h. What should the interval between doses be, if…

A: We have to predict the interval between doses.

Q: The half life for the radioactive decay of potassium-40 to argon-40 is 1.26×10⁹ years. Suppose…

A:

Q: The half-life of strontium-90 is 28 years. Suppose we have a 80 mg sample. (a) Find a function that…

A: Decay reaction of radioactive element is of first order. And for first order reaction, rate of the…

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

A: Initial amount = 0.8 mg Final amount = 0.1 mg Time T = 45 h

Q: A sample of 16? 35 , a ß-emitter, has an activity of 0.100 μCi. In 20.0 days, the activity of…

A: Radioactive follows first order kinetics, If λ is the disintegration constant, t is time at which…

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…

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

A: • The values provided in the question are:-  i) Half life time for the radioactive decay of…

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.