G Chem Q.

[Troyvdg]

I have yet to take any practice tests, and haven't made it all the way through destroyer, but what are we supposed to do with equations that have natural logs? convert by multiplying by .23? or do we just hope that they give a set up equation as an answer choice?

for example, the equation for exponential decay

..how am I am supposed to use that?

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[toothhornet88]

Chad explains half-life decay in a very simple way. You don't need to use that equation in able to find decay just be able to understand basic half life principles. For example: Rn-222 has a half-life of 3.82 days. How long before only 1/16 of the original sample remains?

Heres some good practice:

http://www.chemteam.info/Radioactivity/WS-Radioactivity3.html

 

[Troyvdg]

Chad explains half-life decay in a very simple way. You don't need to use that equation in able to find decay just be able to understand basic half life principles. For example: Rn-222 has a half-life of 3.82 days. How long before only 1/16 of the original sample remains?

Heres some good practice:

http://www.chemteam.info/Radioactivity/WS-Radioactivity3.html

thanks for the response and the link!