(1) Calculate rate (k) at first order
k = 6.42x10-3 hrs-1
(2) t = 48 hours
Initial mass = ??
Mass remaining = 5.0 g
A chemist wishing to do an experiment requiring 47Ca2+ (half-life = 4.5 days) needs 5.0 ug of the nuclide. What mass of 47CaCO3 must be ordered if it takes 48 h for delivery from the supplier? Assume that the atomic mass of 47Ca is 47.0 u.
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.