Posted by James on Sunday, November 26, 2006 at 9:09pm.
How much a 2.00 g 239 Pu would have decayed after 1.6 x 10^4 years? The halflife for 239 Pu is 2.4 x 10^4 years.
amount remaining= originalamount*(.5)^(1.6/2.4)
amount decayed = original  amountremaining

Chemistry  Robert, Thursday, April 5, 2012 at 11:32pm
0.74
Answer This Question
Related Questions
 Calc  A sample of a radioactive substance decayed to 93.5% of its original ...
 Math  _The_Natural_Base_e_ An accident in 1986 at the Chernobyl nuculear plant ...
 Science  Radioactive substance decays so that after t years, the amount ...
 Chemistry  If the half life of Pu239 is 2.4 x 10^4 years, how many years are ...
 Chemistry  Isotopes  The isotope caesium 137 has a half life of 30 years. How ...
 Chemistry  Carbon14 has a halflife of 5730 years In a plant fossil you find ...
 Chemistry  A radioactive sample contains 3.25 1018 atoms of a nuclide that ...
 science  suppose you have 100grams of radioactive plutonium239 with a half...
 nuclear chem  i need help solving this. Can you guys show me how it's done. ...
 Math  In a recent dig, a human skeleton was unearthed. It was later found that ...
More Related Questions