Answer to Question #205108 in General Chemistry for Carly

Question

Based on Table N, determine the time required for an original 100.-milligram sample of P-32 to decay until only 25 milligrams of the sample remain unchanged.

______ days

Answer 1

100$\to50\to25$

Therefore, it requires two, 2, half-lives for P-32 to decay to 25mg.

Let half life=x

The days it will take to decay to 25mg=2(x)=2xdays