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Cobalt is a metal that is added to steel to improve its resistance to corrosion. Calculate both the number of moles in a sample of cobalt containing atoms and the mass of the sample.

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Related questions

The half-life of cobalt-60 is 5.27 years, determine the following:

(a) the decay constant, in 1/s, of cobalt-60
____________________1/s

(b) the number of cobalt-60 atoms in a 2.58 µCi sample
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