Polonium - 210 has a half life of 1384 days decaying by, Ask an Expert

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Polonium - 210 has a half life of 138.4 days, decaying by alpha emission. Suppose the helium gas originating from the alpha panicles in this decay were collected. What volume of helium at 25°C and 735 mmHg could be obtained from 1.0000g of polonium dioxide, PoO2, in a period of 48.0 h?

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