Homework Help: Chemistry

Posted by Mr.Chemistry on Tuesday, October 5, 2010 at 7:13pm.

Po-218 is an alpha emitter with a half-life of 3.0 minutes. If a sample contains 42 mg of Po-218, how many alpha emissions would occur in 6.0 minutes?

Chemistry - bobpursley, Tuesday, October 5, 2010 at 7:18pm
Well, 3/4 have disintegrated.

3/4 *42mg/218 * avagradro's number.

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