What is the mass of the second sample

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Reference no: EM13323268

The same activity is measured for two different isotope samples. One sample contains 0.0450 kg of (atomic mass = 230.033 937 u, t1/2 = 20.8 days). The second sample contains an unknown amount of (atomic mass = 231.036 264 u, t1/2 = 4.3 days). What is the mass of the second sample?

Reference no: EM13323268

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