posted by amor .
If the half-life of a 20.0g is known to be 24 minutes, how long will it take for only 5.0 grams of the sample to remain
I NEED HELP!!!!
5g is 1/4 of 20g, so that's 2 half-lives
2x24 = 48 minutes, so you are correct.
Hey! That's just what I'm trying to figure out! Maybe you ca help me!
i think its c but i'm not sure science is not my strong suit. this one is difficult.
i realy dont know