Suppose that the nuclide Y in Exercise 10B.15 is needed for medical research and that 2.00 g of nuclide X was supplied at t = 0. At what time will Y be most abundant in the sample?

Exercise 10B.15

A radioactive isotope X with a half-life of 27.4 d decays into another radioactive isotope Y with a half-life of 18.7 d, which decays into the stable isotope Z. Set up and solve the rate laws for the amounts of the three nuclides as a function of time, and plot your results as a graph.