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I HAVE ANSWER Uranium–232 has a half–life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium–232. How much uranium was originally present? ANSWER IS 11.2G
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I HAVE ANSWER

Uranium–232 has a half–life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium–232. How much uranium was originally present?
ANSWER IS 11.2G

User Kamal
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Explain how this was solved please

User Damianodamiano
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11.2G is the answer to this problem.
User Kamal Hamidi
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