Posted by amor on Wednesday, September 25, 2013 at 10:34pm.
If the halflife 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
A.6 minutes
B.24 minutes
C.48 minutes
D.96 minutes
I NEED HELP!!!!

science  amor, Wednesday, September 25, 2013 at 10:36pm
IS IT.....C?

science  Steve, Thursday, September 26, 2013 at 5:34am
5g is 1/4 of 20g, so that's 2 halflives
2x24 = 48 minutes, so you are correct.

science  Mackenzie, Wednesday, January 14, 2015 at 9:35pm
Hey! That's just what I'm trying to figure out! Maybe you ca help me!

science  maddie, Monday, March 23, 2015 at 12:09pm
i think its c but i'm not sure science is not my strong suit. this one is difficult.

science  Anonymous, Thursday, October 13, 2016 at 1:30pm
Its c

science  trevon, Wednesday, December 14, 2016 at 12:17am
i realy dont know
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