Determine the mass of one molecule of:
Hint: on (d) and (e), you may wish to consult a "Handbook of Chemistry and Physics" for the exact weights of the U-235 and U-238 isotopes.
Can you swim in a billion billion (1.00 x 1018) molecules of water? What mass does this represent?
How many molecules of oxygen (O2) would be required to produce one drop (0.010 g) of water?
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