Natural uranium consists almost entirely of 238U. To operate a nuclear power reactor, the fuel must be enriched in a lighter fissionable isotope, 235U. If the average molar mass of uranium in a reactor is 236.2, what percent of the fuel consists of the lighter isotope? Assume that the masses of the two isotopes are exactly 235 and 238 amu.

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter18: Nuclear Chemistry
Section: Chapter Questions
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Natural uranium consists almost entirely of 238U. To operate a nuclear power reactor, the fuel must be enriched in a lighter fissionable isotope, 235U. If the average molar mass of uranium in a reactor is 236.2, what percent of the fuel consists of the lighter isotope? Assume that the masses of the two isotopes are exactly 235 and 238 amu.

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