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Specialty Chemistry Forums => Nuclear Chemistry and Radiochemistry Forum => Topic started by: tashkent on November 29, 2004, 08:03:54 AM

Title: online references for nuclear chem?
Post by: tashkent on November 29, 2004, 08:03:54 AM

Greetings everyone!

I would like to ask for any online links for Nuclear Chemistry?  I have been boggled by a certain Nuclear Chemistry problem.  For example, you're given a certain nuclear activity of 2000 cpm for a mass of 50 mg, and 500 cpm for a mass of 60 mg.  Then you are asked for the mass of the original sample?  I saw from the Mortimer book the formula: No/N = (activity)0/(activity), but I can't figure out a formula of finding for the mass of the original sample.  I'm trying to solve it without using a calculator...

Hope you can clear this up guys.  Thanks.

Regards,
Tashkent

Title: Re:online references for nuclear chem?
Post by: Donaldson Tan on November 29, 2004, 08:02:16 PM

I'm not too sure. How about working from basic principles?

-dN/dt = kN where N is number of radioactive nuclei, k: constant

Title: Re:online references for nuclear chem?
Post by: pizza1512 on January 17, 2005, 09:08:28 AM

You could go to Google and search for it...

Here's one anyway!

chemcases.com/nuclear/ (http://chemcases.com/nuclear/)

Title: Re:online references for nuclear chem?
Post by: HNO3 on January 17, 2005, 08:52:01 PM

Its just starting, but http://groups-beta.google.com/group/Nuclear-Chemistry/