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Mathematics, 29.08.2019 23:40 tatibean26

Sodium-24 has a half-life of 15 hours.
how many grams of a 900 g sample will remain after 90 hours?
a) 7.03125 g
b) 7.5 g
c) 14.0625 g
d) 28.125 g

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Sodium-24 has a half-life of 15 hours.
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