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Half-Life Calculator

Half-Life Calculator

Half-Life Calculator

Calculate the remaining amount of a substance after a given time.

* Enter all values as positive numbers.

Step 1: Enter Data

Enter the initial quantity of the substance

Enter the half-life period (in the same time unit as elapsed time)

Enter the elapsed time

Formula:

$$ R = R_0 \left(\frac{1}{2}\right)^{\frac{t}{T_{1/2}}} $$
where \(R_0\) is the initial amount, \(T_{1/2}\) is the half-life, and \(t\) is the elapsed time.
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