Sunday

January 25, 2015

January 25, 2015

Posted by **Mima** on Tuesday, April 24, 2012 at 4:08pm.

- Chemistry -
**DrBob222**, Tuesday, April 24, 2012 at 4:20pmk = 0.693/t

_{1/2}

solve for k.

ln(No/N) = kt

No = 5.00 g

N = ?

k from above.

t = time in years = 15,000

- Chemistry -
**Mima**, Tuesday, April 24, 2012 at 4:40pmThank you so much.

**Answer this Question**

**Related Questions**

oceanography - 14C has a half-life of 5,730 years. If we start with 70 grams of ...

Pre-Cal - The radioactive isotope of Carcon (^14C)has a half life of 5730. What ...

12th grade - The radioactive isotope of Carcon (^14C)has a half life of 5730. ...

ChemB - The activity of carbon 14 in living tissue is 15.3 disintegrations per ...

Algebra - An isotope has a half-life of 97 years. how much of a 19-gram sample ...

physical science - cobalt-60 has a half-life of 5.26 years, how much of a 500 ...

algebra - Scientists can determine the age of ancient objects by a method ...

Chemistry - An archeological artifact was subjected to radiocarbon dating. The ...

calculus - The rate at which an amount of a radioactive substance decays is ...

chemistry - A 1.00-g sample of carbon from a modern source gave 15.3 ...