Question 925599
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a) find the decay constant<br>
Use the general equation and the fact that a sample decays to half its original in 24110 years.<br>
{{{1/2 = e^(-24110k)}}}
{{{ln(.5) = -24110k}}}
{{{k = ln(.5)/-24110 = -.00002875}}} to 4 significant figures<br>
b) find how much remains of 20g after 5000 years<br>
Use the formula with the value of k you found.<br>
{{{20*e^(-.00002875*5000) = 17.322}}}<br>
The statement of part c) makes no sense grammatically, so there is no way to know what the intended question was....<br>