Answer to Question #74544 in General Chemistry for Shaloma

Question

As Hans Blix you have discovered a container of Uranium(VI) fluoride taken from a supply shipment going into North Korea. You must determine if the supply shipment is breaking the nuclear treaty limit of having no more than 3% enriched Uranium the sample the Molar mass of the sample is 351.883.

Answer 1

Answer:
Enriched uranium is a type of uranium in which the percent composition of uranium-235 has
been increased through the process of isotope separation. Natural uranium refers
to uranium with the same isotopic ratio as found in nature. It contains 0.711% uranium-235,
99.284% uranium-238, and a trace of uranium-234. We need to know the mass of the sample
m. The mass of 235-U should be no more than 0.03m.
The methods of determination of 235-U in samples are:
 determination of uranium by measurement of radioactivity
 by the isotope dilution method of Rona
 the fluorimetric method
 the formation of a characteristic colored complex whose concentration may be
determined directly with a suitable spectrophotometer and others*. Basically we gonna
need the lab!

* Determination of Uranium ti Natural Waters F. B. BARKER, J. O. JOHNSON, K. W. EDWARDS,
and B. P. ROBINSON