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12 November, 03:42

Mercury-197 has a half life of 3 days. Starting with 300 grams, how much remains in 3 weeks? (Round to two places)

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  1. 12 November, 06:34
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    Each > = 3 days

    300g > 150g > 75g > 37.5g > 18.75g > 9.375g > 4.6875g > 2.34375g

    Thus, mass remaining = 2.34g (2 d. p.)
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