Ch.20 - Nuclear Chemistry
McMurry8th EditionChemistryISBN: 9781292336145
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- Ch.1 - Chemical Tools: Experimentation & Measurement167
- Ch.2 - Atoms, Molecules & Ions145
- Ch.3 - Mass Relationships in Chemical Reactions162
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms91
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory66
- Ch.7 - Covalent Bonding and Electron-Dot Structures59
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy114
- Ch.10 - Gases: Their Properties & Behavior121
- Ch.11 - Liquids & Phase Changes52
- Ch.12 - Solids and Solid-State Materials72
- Ch.13 - Solutions & Their Properties70
- Ch.14 - Chemical Kinetics84
- Ch.15 - Chemical Equilibrium70
- Ch.16 - Aqueous Equilibria: Acids & Bases86
- Ch.17 - Applications of Aqueous Equilibria101
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium77
- Ch.19 - Electrochemistry137
- Ch.20 - Nuclear Chemistry82
- Ch.21 - Transition Elements and Coordination Chemistry126
- Ch.22 - The Main Group Elements92
- Ch.23 - Organic and Biological Chemistry11
Chapter 20, Problem 1
What is the balanced nuclear equation for the alpha decay of plutonium-238?
(a)
(b)
(c)
(d)
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Textbook Question
Fluorine-18 undergoes positron emission with a half-life of 1.10 x 10^2 minutes. If a patient is given a 250 mg dose for a PET scan, how long will it take for the amount of fluorine-18 to drop to 75 mg?
(a) 56 minutes
(b) 96 minutes
(c) 132 minutes
(d) 191 minutes
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Textbook Question
In a cave in Oregon, archaeologists found bones, plant remains, and fossilized feces. DNA remaining in the feces indi-cates their human origin but not their age. To date the remains, the decay rate was measured and found to be 2.71 disinte-grations/min per gram of carbon. Currently living organisms have a decay rate of 15.3 disintegrations/min per gram of carbon, and the half-life of 14C is 5715 years. How old are the remains?
(a) 1460 years
(b) 9900 years
(c) 14300 years
(d) 18600 years
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Textbook Question
Calculate the binding energy a uranium-235 nucleus in units of MeV/nucleon. The mass of an 235U atom is 235.043 929, the mass of a proton is 1.007 28, the mass of a neutron is 1.008 67, and the mass of an electron is 5.486 x 10^-4. (1 MeV = 1.60 x 10^-13 J)
(a) 2.84 MeV/nucleon
(b) 1.70 x 10^3 MeV/nucleon
(c) 11.3 MeV/nucleon
(d) 7.62 MeV/nucleon
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