Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Join our platform to get reliable answers to your questions from a knowledgeable community of experts. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

imagine there is a radioactive isotope that has a half-life of 500 years. a sample contains 50% parent and 50% progeny atoms. how old is this sample?

Sagot :

We know that radioactive reactions are first order reaction

For a first order reaction in CHEMICAL KINETICS

Rate Constant = 0.693/(Half Life)

we know that,

Half Life = 500 years

K = 0.693/500

K = 0.001386

For first order,

ln[A] = -Kt + ln[A*]

[A] = concentration of A after time, t

[A*] = initial concentration of A at time, t=0

Kt = 2.303 log {[A*]/[A]}

At half life [A] = [A*]/2

Kt = 2.303 log (2)

(0.001386)t = 2.303 × 0.3010

t = (2.303)(0.3010)/(0.001386)

t = 500.146 years

To know more about Chemical Kinetics:

brainly.com/question/24377318

#SPJ4

We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.