![subject](/tpl/images/cats/himiya.png)
Chemistry, 03.05.2021 15:20 clairebear65
The decay of 40K to 40Ar is used to date igneous rocks around fossil deposits to bracket the age of the fossils. When 40K decays, 10.9% of the time it produces 40Ar. The half-life of 40K is 1.248 x 109 years. In a given rock sample, 281.8 nmol of 40K is measured and 7.25 nmol of 40Ar is measured. What is the age of the rock in years
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 21:30, sbhishop19
Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass
Answers: 1
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 06:30, khalaflaf2684
If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution
Answers: 1
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:00, calmicaela12s
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
You know the right answer?
The decay of 40K to 40Ar is used to date igneous rocks around fossil deposits to bracket the age of...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.04.2021 05:00
![Konu](/tpl/images/cats/en.png)
English, 27.04.2021 05:00
![Konu](/tpl/images/cats/biologiya.png)
Biology, 27.04.2021 05:00
![Konu](/tpl/images/cats/ap.png)
![Konu](/tpl/images/cats/en.png)
English, 27.04.2021 05:00
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/mat.png)