(Q114) A meteorite recovered from a meteor landing site in the Australian outback contains 0.438 g of lead-206 for every 1.000 g of uranium-238 that it contains. Assuming the rock did not originally contain any lead-206, how old is the meteorite? (The half-life for this decay process is 4.5 x 10⁹ years). O 2.3 x 10⁹ years O 2.7 x 10⁹ years O 4.4 x 10⁹ years O 1.5 x 1010 years O 7.1 x 10⁹ years

(Q114) A meteorite recovered from a meteor landing site in the Australian outback contains 0.438 g of lead-206 for every 1.000 g of uranium-238 that it contains. Assuming the rock did not originally contain any lead-206, how old is the meteorite? (The half-life for this decay process is 4.5 x 10⁹ years). O 2.3 x 10⁹ years O 2.7 x 10⁹ years O 4.4 x 10⁹ years O 1.5 x 1010 years O 7.1 x 10⁹ years

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

CHEMWORK Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the age of a rock sample that contains 106.7 µg 8/Rb and 4.5 µg 87Sr ? years old Assume that no 8/Sr was present when the rock was formed. The atomic masses are given in the table below: Nuclide Atomic Mass 87Rb 86.90919 87 Sr 86.90888
Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222 is 3.82 days. If you begin with 37.9 mg of this isotope, what mass remains after 4.70 days have passed? _____mg
Radioactive decay can be described by the following equation In A = In Ao – kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. -1 For the radioactive isotope lead-210, k is 3.30 x 10 years If the original amount of lead-210 in a sample is 60.0 mg, how much lead-210 remains after 24.6 years have passed? mg
Macmillan l 30: F2 W S A 210.2 ng sample of an unknown radioactive substance was placed in storage and its mass measured periodically. After 47 days the amount of radioactive substance had decreased to 26.28 ng. How many half-lives of the unknown radioactive substance have occurred? number of half-lives: #3 H 80 F3 mmand E D A GA $ X C 4 OOD 886 F4 R F % от ото 5 V F5 T G ^ 6 B F6 Y & 7 H 8 F7 U N 00 * 8 DII FB J L - ( 9 M K DD F9 O . V - ... I 4 F11 { [ option + = ? 11 1 F12 } ] half-lives delete return st
Radioactive vanadium-48 decays with a half-life of 16.0 days. a. What is the value of k in s? k = b. A sample contains 84.0 mg *°V. How many decay events will be produced in the first second? Assume the atomic mass of **V is 48.0 u. decays/s c. A chemist obtains a fresh sample of 48 V and measures its radioactivity. She then determines that to do an experiment, the radioactivity cannot fall below 25% of the initial measured value. How long does she have to do the experiment? days
A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013 disintegrations per 20 min. What percentage of the nuclide will have decayed after 200 days? How many atoms of nuclide will remain in the sample? What is the half-life of the nuclide?
A radioactive sample has a decay constant of 1.32 x 10-3 h-1. What is its half life?