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Chemistry, 19.08.2019 18:30 namirah0303
Pd-99 has a half-life of 22.3 hours. how many grams of a 89.8 gram sample would have decayed after exactly three half-lives?
a. 22.90 grams
b. 1.34 grams
c. 11.23 grams
d. 22.3 grams
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