Posted by student012 on Monday, October 20, 2008 at 10:27pm.
ok in my professors notes he calculates carbon 14 age in an example.
The problem goes like this:
Sample contains 110g carbon
sample produces 70 disintegrations per minute.
That is 0.7 disintegrations per minute.
T=(1/lambda)ln(N0/Nt)
Then he substitutes:
t=(1/1.209*10^4/year)ln(1600/70)
I just want to know where did he get 1600 from?

college geology dealing with carbon 14  bobpursley, Monday, October 20, 2008 at 11:23pm
No is 1600 disintegrations per minute, it was the disintegrations per minute in the original sample at the beginning.
What concerns me is the last two lines of your text notes..
sample produces 70 disintegrations per minute, that is .7 diintegrations per minute. Huh?

college geology dealing with carbon 14  student012, Tuesday, October 21, 2008 at 11:21am
I wrote exactly what he had in his notes. so what should the actual t=? is everything else correct except the 1600? I have no examples in my book.
Answer This Question
Related Questions
 college Geol 101  Suppose you have a sample of clamshell at a Paleoindian site ...
 college geology help please  I was the same person from yesterday. I need help ...
 Chemistry  The cloth shroud from around a mummy is found to have a carbon14 ...
 chemistry  A 1.00g sample of carbon from a modern source gave 15.3 ...
 chemistry  A 1.00g sample of carbon from a modern source gave 15.3 ...
 ChemB  The activity of carbon 14 in living tissue is 15.3 disintegrations per ...
 Chemistry  An archeological artifact was subjected to radiocarbon dating. The ...
 Physics  A gram of living plant material with Carbon14 , decays at a rate of ...
 geology  suppose you have a sample of clamshell at a paleoindian site and you ...
 chem  I am not sure if there is an equation for this problem or wut?? A 73kg ...
More Related Questions