(a) Explanation Given info: Half-life of tritium is 12.33 years. Formula to calculate the fraction of remaining sample after 5.00 yr is, F = N N 0 (I) N is the remaining sample. N 0 is the initial sample. The fraction remaining is given by, N N 0 = exp [ − ( t t 1 / 2 ) ln 2 ] (II) t is the time. t 1 / 2 is the half-life (b) To determine The fraction of remaining sample after 10.0 yr. (c) To determine The fraction of remaining sample after 123.3 yr. (d) To determine The time required for the entire sample to decay.

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Question

Chapter 29, Problem 20P

(a)

To determine

The fraction of remaining sample after 5.00 yr.

(b)

To determine

The fraction of remaining sample after 10.0 yr.

(c)

To determine

The fraction of remaining sample after 123.3 yr.

(d)

To determine

The time required for the entire sample to decay.

Expert Solution & Answer

Chapter 29 Solutions

College Physics

Ch. 29.3 - Prob. 29.1QQ Ch. 29.3 - What fraction of a radioactive sample has decayed...Ch. 29.3 - Prob. 29.3QQ Ch. 29.6 - Prob. 29.4QQ Ch. 29.6 - Prob. 29.5QQ Ch. 29 - Prob. 1CQ Ch. 29 - Prob. 2CQ Ch. 29 - Prob. 3CQ Ch. 29 - Prob. 4CQ Ch. 29 - Prob. 5CQ

Ch. 29 - Prob. 6CQ Ch. 29 - Prob. 7CQ Ch. 29 - A radioactive sample has an activity R. For each...Ch. 29 - Prob. 9CQ Ch. 29 - Prob. 10CQ Ch. 29 - Prob. 11CQ Ch. 29 - Prob. 12CQ Ch. 29 - Prob. 13CQ Ch. 29 - Prob. 1P Ch. 29 - Prob. 2P Ch. 29 - Prob. 3P Ch. 29 - Prob. 4P Ch. 29 - Using 2.3 1017 kg/m3 as the density of nuclear...Ch. 29 - Prob. 6P Ch. 29 - Prob. 7P Ch. 29 - Prob. 8P Ch. 29 - Prob. 9P Ch. 29 - Prob. 10P Ch. 29 - Prob. 11P Ch. 29 - Prob. 12P Ch. 29 - Prob. 13P Ch. 29 - Prob. 14P Ch. 29 - Two nuclei having the same mass number are known...Ch. 29 - Prob. 16P Ch. 29 - Radon gas has a half-life of 3.83 days. If 3.00 g...Ch. 29 - Prob. 18P Ch. 29 - Prob. 19P Ch. 29 - Prob. 20P Ch. 29 - Prob. 21P Ch. 29 - Prob. 22P Ch. 29 - Prob. 23P Ch. 29 - Prob. 24P Ch. 29 - Prob. 25P Ch. 29 - Prob. 26P Ch. 29 - Prob. 27P Ch. 29 - Prob. 28P Ch. 29 - The Mass of 56Fe is 55.934 9 u, and the mass of...Ch. 29 - Prob. 30P Ch. 29 - Prob. 31P Ch. 29 - Prob. 32P Ch. 29 - Prob. 33P Ch. 29 - Prob. 34P Ch. 29 - Prob. 35P Ch. 29 - Prob. 36P Ch. 29 - Prob. 37P Ch. 29 - Prob. 38P Ch. 29 - Prob. 39P Ch. 29 - Prob. 40P Ch. 29 - Prob. 41P Ch. 29 - Prob. 42P Ch. 29 - Prob. 43P Ch. 29 - Prob. 44P Ch. 29 - Prob. 45P Ch. 29 - Prob. 46P Ch. 29 - Prob. 47P Ch. 29 - Prob. 48P Ch. 29 - Prob. 49P Ch. 29 - Prob. 50P Ch. 29 - Prob. 51AP Ch. 29 - Prob. 52AP Ch. 29 - Prob. 53AP Ch. 29 - Prob. 54AP Ch. 29 - Prob. 55AP Ch. 29 - Prob. 56AP Ch. 29 - Prob. 57AP Ch. 29 - Prob. 58AP Ch. 29 - Prob. 59AP Ch. 29 - Prob. 60AP Ch. 29 - Prob. 61AP Ch. 29 - Prob. 62AP

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Suppose you have a pure radioactive material with a half-life of T1/2. You begin with N0 undecayed nuclei of the material at t = 0. At t=12T1/2, how many of the nuclei have decayed? (a) 14N0 (b) 12N0(C) 34N0 (d) 0.707N0 (e) 0.293N0
(a) Calculate the energy released in the a decay of 238U . (b) What fraction of the mass of a single 238U is destroyed in the decay? The mass of 234Th is 234.043593 u. (c) Although the fractional mass loss is large for a single nucleus, it is difficult to observe for an entire macroscopic sample of uranium. Why is this?

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