For 1.2 mole of the radioactive isotope iron-59, half-life = 45.1 days, how many disintegrations have?

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For 1.2 mole of the radioactive isotope iron-59, half-life = 45.1 days, how many disintegrations have?

For 1.2 mole of the radioactive isotope iron-59, half-life = 45.1 days, how many disintegrations have occurred after 15 minutes?

Thank you sooo much!!

2007-04-26 14:48:18 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

3x10^21

2007-04-26 23:38:17 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋

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2016-05-17 04:57:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋