How much of a 0.15 g sample of U-238 after the passage of 3200 years? Half-life is 4.01x10^9 years.

Q: The half-life of cobalt-60 is 5.26 years. If 50 g are left after 15.78 years, how many grams were in…

A: The  formula that relates the mass remaining of the radioisotope to the original mass is given below…

Q: A 16.0 g sample of technicium-99m has a half-life of 6.0 hours. How much sample remains 24 hours…

A: As per the given information in the question, First calculate the rate constant (K) of the…

Q: The half-life of Phosphorus-32 is 14.3 days. If you start with 100 grams of it, how long will it…

A: Half life of a first order reaction is given by , t1/2=0.693k Write the expression for first order…

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

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Q: The half-life of radium-226 is 1.60X10³ yr. How manyhours will it take for a 2.50-g sample to decay…

A: Given :  t1/2 = 1.60 x 103 yr , [A0] = 2.50 g , [At] = 0.185 g Half-life : The time taken by any…

Q: The half-lives of different radioisotopes are given in the table. Radioisotope Half-life (min)…

A: We know that,→ Radioactivity Phenomena follow first oroen kinetics.So, Rate = KA1 K → Rate…

Q: Carbon-14 has a half life of 5730 years. How much carbon-14 would remain after 34380 years if the…

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Q: A rock contains 0.257 mg of Pb-206 for every milligram of U-238.The half-life for the decay of U-238…

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Q: The half-life of Uranium-238 is approximately 4.5(10°) years. How much of a 10 kilogram block of U-…

A: Given data :- Half life = 4.5 x 109 years mass of uranium = 10 kg

Q: Cobalt-60 has a half-life of 5.3 years. How many half-livesoccur after 21.2 years?

A: Generally, a radioactive decay reaction takes place as a first order reaction.  In a first order…

Q: The half-life of tritium is 12.5 years. How much will remain after exactly 100 years if you start…

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Q: The half life of Carbon-14 is 5730 years. Calculate what percentage of C-14 will remain after 17,190…

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Q: How much of a 0.15 g sample of U-238 after the passage of 3200 years? Half life is 4.01×10⁹ years.

A: Given: Mass of sample = 0.15g Duration of decay= 3200 years. Half life= 4.01×109 years To find: The…

Q: the half life of iodine-131 is 8 days, after how many days will a sample of it decay to 70% of its…

A: As we know,  Radioactive decay follows 1st order kinetics.Integrated rate law equation for 1st order…

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

A:

Q: A rock contains 0.257 mg of lead-206 for every milligram of uranium-238. The half-life for the decay…

A: The first-order rate law can be transformed into another highly useful equation with the decay…

Q: The half-life of plutonium-239 is 24,110 years. If an original sample is 100. grams, how much…

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Q: How many grams will be left after 100 days if you have 150 g of thorium-234 at the beginning?…

A: Given,  The mass in grams will be left after 100 days of the decay, if initial amount of Th-234 is…

Q: The half-life of Radium-226 is 8 years. How much of an initial 171 g sample will remain after 43…

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Q: 4. How long will it take for a sample of iron-55 to decay to 1/64 of its original mass if iron- has…

A: Radioactive decays are always first order reaction. So we will use rate law equation of first order…

Q: The half life of Plutonium-239 (239Pu, Pu-239) is 24,100 years. How much plutonium will remain after…

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Q: One of the nuclides in spent nuclear fuel is U-235 an alpha emitter with a half-life of 703 million…

A: The objective of this question is to determine the time it will take for the amount of U-235 to…

Q: One of the nuclides in spent nuclear fuel is U-235, an alpha emitter with a half-life of 703…

A: The relationship between the decay constant and the half-life period is given below.

Q: Polonium-211 has a half-life of 12 years. How much of a 32 gram sample remains after 60 years?

A: We know nuclear decay follows first-order reaction so- relation between decay constant and half life…

Q: he half-life of polonium-210 is about 140 days. How much of a 150g sample remains after t years?

A: The rate of the reaction is referred to the change in the molar concentration in the distinct…

Q: The half-life of cesium-137 is 30.2 yrs. If the initial mass of a sample is 1.00kg, how much will…

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Q: What is the half-life of gallium-74 if 32.1 minutes are required for the activity of a sample of…

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Q: Radium decomposes at a rate proportional to the present amount. The half life of Radium is 1600…

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Q: The half-life of radium-226 is 1.8x103 years. How many hours will it take for a 2.50-gram sample to…

A: Interpretation-  To determine how many hours will it take for a 2.50-gram sample to decay to the…

Q: Given the half-life of Carbon-14 is 5770 years, how much of a 540 gram sample is left after 10000…

A: For the given radioactive decay process: Rate constant, k =?  Half-life=5770 years According to…

Q: A rock contains 0.257 mg of lead-206 for every milligram of uranium-238. The half-life for the decay…

A: The first-order rate law can be transformed into another highly useful equation with the decay…

Q: What is the half-life of uranium-238 if 9.10×109 years are required for the activity of a sample of…

A: Given: 9.10×109 years are required for the activity of a sample of uranium-238 to fall to 24.7…

Q: the half-life of aluminum 26 is .74 million years. Suppose an asteroid contained 800 kg of aluminum…

A: The half-life of aluminum 26 is 0.74 million years. The mass of aluminum 26 present in asteroid is…

Q: Cobalt-58 which is radioactive, has a half-life of 71 days. How

A: Radioactivity follows first order kinetics Hence decay constant (K) and t1/2 (half life ) related as…

Q: The half-life of cesium-137 is 30.2 y. How long will it take for a sample of cesium-137 to decay to…

A: Half life of caesium- 137=30.2 years a0=x a1/2=x/8