Tuesday

July 22, 2014

July 22, 2014

Posted by **Anonymous** on Thursday, October 14, 2010 at 4:06pm.

- Chemistry -
**DrBob222**, Thursday, October 14, 2010 at 4:32pmFirst determine k.

k = 0.593/t^{1/2}, then substitute the value of k into the equation below.

ln(256/N) = k(100)

Solve for N in grams.

- Chemistry -
**Anonymous**, Thursday, October 14, 2010 at 4:40pmThanks so much!

- corr'n--typos--Chemistry -
**DrBob222**, Thursday, October 14, 2010 at 4:56pmI made two typos. k = 0.693/t

_{1/2}

**Related Questions**

Chemistry - Which radioactive sample would contain the greatest remaining mass ...

science - the half life of tritium is 12.5 years. How much of a 1 g sample will ...

half life - tritium has a half life of 24.3 years .a sample of 0.1 is produced...

CHemistry - The half-life of tritium is approximately 12 years. What will be the...

Physics - Suppose you have 100 g of radioactive plutonium-239 with a half-life ...

Physics - Suppose you have 100 g of radioactive plutonium-239 with a half-life ...

chemistry - The half-life of stronitum-90 is 28 years. How many grams of this ...

chemistry - What percent of the original sample of strontium-90 (half-life = 28....

chemistry - a)indium-115 has a half life of 4.5 hours. if you start with a 12.0-...

Biology - The half -life of carbon-14 is 5,730 years.how much of an initial ...