Naturally occurring cobalt consists of only one isotope, 59 Co, whose relative atomic
Chapter 2, Problem 126(choose chapter or problem)
Naturally occurring cobalt consists of only one isotope, 59 Co, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt, 60 Co, has a relative atomic mass of 59.9338 and is used in radiation therapy for cancer. A 1.5886 g sample of cobalt has an apparent atomic mass of 58.9901. Find the mass of 60 Co in this sample.
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