Chemistry

Chemistry, 27.07.2019 06:00, letsgivepece2309

Cobalt-60 can be used by scientists for the purpose of radioactive dating. cobalt-60 has a half-life of 5,272 years. a fossilized rock originally contained 25 grams of co-60. when tested, the rock only contains 6.25 grams of co-60. approximately how old is the item?

answer

Answers: 2

Show answers

Similar questions

Предмет

Physics, 28.06.2019 01:00, jenni8664

The half life of cobalt-60 is 5.3 years. if a certain rock currently contains 10.0g of cabals -60 how much cobalt-60 will remain in the rock after 21.2 years a. 1.25g b. 2.50g c. 0.63g d. 5.00g

Answers: 1

Предмет

Mathematics, 06.07.2019 08:10, hemaam8

The mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e^ −0.1315 t . 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60.

Answers: 3

Предмет

Chemistry, 03.08.2019 01:30, smiley29162

The unstable isotope nickel-59 can be used to date rocks that contain it. nickel-59 decays into the more stable cobalt-59. the nickel isotope has a half-life of 76,000 years. which statement about nickel-59 is true? a) after 76,000 years, all the nickel-59 in a rock decays into cobalt-59.b) nickel-59 can only be used to date rocks that are younger than 76,000 years.c) all the nickel-59 stabilizes after it completes one half-life period of 76,000 years.d) the amounts of nickel-59 and cobalt-59 remain the same over a half-life period.e) the amounts of nickel-59 and cobalt-59 tell how long ago the rock cooled to closure temperature.

Answers: 1

Предмет

Mathematics, 07.10.2019 19:00, Evixie84

The amount of a radioactive substance remaining after t years is given by the function (0) = m(0.5) where m is the initial mass and h is the half-life in years. cobalt-60 has a half-life of about 5.3 years. which equation gives the mass of a 50 mg cobalt-60 sample remaining after 10 years, and approximately how many milligrams remain? f(10) = 50(0.5) 19, 13.5 mg f(10) = 50(0.50)0.53; 34.6 mg f(10) = 5.3(0.5)5; 0.2 mg f(10) = 5.3(0.5)02; 4.6 mg

Answers: 2

Do you know the correct answer?

Cobalt-60 can be used by scientists for the purpose of radioactive dating. cobalt-60 has a half-life...

Questions in other subjects:

Konu

Geography, 14.12.2020 18:20

How can an eyewitness account become a secondary source...

Konu

Mathematics, 14.12.2020 18:20

Please Help me, Never learned about this ...

Konu

Mathematics, 14.12.2020 18:20

6v^2+13v-8= −3 solve the equation for all real solutions...

Konu

Mathematics, 14.12.2020 18:20

An accountant charges an initial fee of $100 plus a rate of $40 per hour. The function that shows the total fees charged is f(x) = 40x + 100. How would the graph...

Konu

Mathematics, 14.12.2020 18:20

Please help! show your work if you can. ...

Konu

Mathematics, 14.12.2020 18:20

Classics Online charges a onetime registration fee of $17.50 and sells classical music downloads for $0.70 per song. Ian has $50.00 that he will use to pay the registr...

Konu

Mathematics, 14.12.2020 18:20

4(6x−10)=8x+40 solve it for brainliest...

Konu

Engineering, 14.12.2020 18:20

100 ponits if answered in your own words 03.08 The Big Finish Using the ideas you previously wrote in your Narrative Organization Chart, your introduction (exposition), and...

Konu

Mathematics, 14.12.2020 18:20

What is the quotient of 18 dived by 6...

Konu

Biology, 14.12.2020 18:20

How does biology diversity is increased by process of Spocation?...

Other tasks in the category: Chemistry More task