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January 28, 2015

January 28, 2015

Posted by **Anonymous** on Sunday, May 1, 2011 at 2:08pm.

- Chemistry -
**bobpursley**, Sunday, May 1, 2011 at 2:20pm.001=e^-.692t/th

-.693*t/14.26 = ln .001

t= 142 days? check that.

- Chemistry -
**DrBob222**, Sunday, May 1, 2011 at 2:23pmln(No/N) = kt

Substitute for No = 100

N = 100-99.9

Solve for t in days.

- Chemistry -
**Anonymous**, Sunday, May 1, 2011 at 2:24pmYeah, thanks.

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