11)Copper-64 decays in such a way that concentration versus time data collected resulted in a straight line for a plot of In[A] versus time. If the half- life 12.8 days a) Determine the rate law b) What is the slope of the line c) How long would it take for 25% of the sample to decay

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A: Half life of electron=1.30 × 10 ^9 years Time=1.31×10^9years

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Q: U-238 decays with the half-life of 4.47 billion years. Calculate the % of a sample left after 13.4B…

A: Given : Half life = 4.47 billion years  Time = 13.4 billion years.

Q: dN dN, -k,N, ve dt = k;N, – k,N, dt

A: Radioactive decay: The spontaneous breakdown of atomic nucleus with mass and energy release.

Q: A sample of corn from an extinct civilization has a decay rate of 9.5 decays per minute per gram of…

A: Given data,Initial Decay rate=9.5min-1g-1Decay rate in atmosphere=15min-1g-1K=1.21×10-4year-1

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A:

Q: A sample of corn from an extinct civilization has a decay rate of 9.5 decays per minute per gram of…

A: First-order reaction:Radioactive decay follows first-order kinetics. The rate of the first-order…

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A: First the rate constant value is calculated.

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A:

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

A: Radioactivity follows First order reaction.   For First order reaction : t1/2 = 0.693k where, t1/2 =…

Q: If 28.0% of a sample of erbium-165 decays in 4.74 hours, what is the half-life of this isotope (in…

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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

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Q: A sample of corn from an extinct civilization has a decay rate of 8.6 decays per minute per gram of…

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Q: Consider 250g of iodine which decomposes at a rate proportional to the amount present. Around 150g…

A: According to question, Initial amount of iodine = 250 g

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A: Since, you have not mentioned about the order of the reaction, I have assumed it to be the 1st order…

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Q: Tritium is a radioactive hydrogen isotope that undergoes beta decay.  a) Write a balanced nuclear…

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Q: The rate constant for the radioactive decay of indium-131 is 0.086 1/days. The percentage of…

A: Integrated rate equation for radio active decay :  k = 2.303tlogaoa  0.086  = 2.30335log100a  1.30 =…

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Q: 26. The rate of decay of a radioactive substance is x where x is the amount of the substance…

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Q: what is the half-life of plutonium-239 if it takes 14 098 years for 33% of a given sample to decay

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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: After 12.80 days, a radioactive nuclide has passed through exactly five half-lives. The initial…

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Q: A 56.6 mg sample of sodium perchlorate contains radioactive chlorine-36 (whose atomic mass is 36.0…

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Q: Consider the radioisotope ²³⁵U (half life = 7.04 × 10⁸ years). What is the first order rate constant…

A: The reaction is given first order. And half life = 7.04 X 108 years

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

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Q: avier is at NASA analyzing Moon rocks. In one of the rocks from the lunar maria, he discovered 79 %…

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

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Q: The half-life of radioactive strontium-90 is 28.8 years. How long would it take when only 16.5% of…

A: The half-life of strontium-90 is = 28.8 years Time would it take when only 16.5% of the original…

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Q: 47.  Recently, the skeleton of King Richard III was found under a parking lot in England. If tissue…

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Q: The half-life o carbon-11 is 20.3 min. How long will it take for 69% of a sample to decay? How long…

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Q: What is the half-life

A: Half life of a reaction is the time taken to reduce half the initial concentration of the…