A sample of ore containing radioactive strontium 90 38 Sr has an activity of 6.0 10
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A sample of ore containing radioactive strontium 9038Sr has an activity of 6.0 × 105 Bq. The atomic mass of strontium is 89.908 u, and its half-life is 29.1 yr. How many grams of strontium are in the sample?
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Recall from Section 141 that the mass m of a substance is equal to the number n of moles times the m...View the full answer
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