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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 iodine-123, k is 5.21 × 10-2 hours. If the original amount of iodine-123 in a sample is 48.1 mg, how much iodine-123 remains after 13.2 hours have passed? mg Submit Answer Retry Entire Group No more group attempts remain

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 iodine-123, k is 5.21 × 10-2 hours. If the original amount of iodine-123 in a sample is 48.1 mg, how much iodine-123 remains after 13.2 hours have passed? mg Submit Answer Retry Entire Group No more group attempts remain

Introductory Chemistry For Today
Introductory Chemistry For Today
8th Edition
ISBN:9781285644561
Author:Seager
Publisher:Seager
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.17E
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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 iodine-123, k is 5.21 × 10-2 hours. If the original amount of iodine-123 in a sample is 48.1 mg, how much iodine-123 remains after 13.2 hours have passed? mg Submit Answer Retry Entire Group No more group attempts remain
Transcribed Image Text: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 iodine-123, k is 5.21 × 10-2 hours. If the original amount of iodine-123 in a sample is 48.1 mg, how much iodine-123 remains after 13.2 hours have passed? mg Submit Answer Retry Entire Group No more group attempts remain
b If Kw 7.2 x 10-8 then pKw Submit
Transcribed Image Text:b If Kw 7.2 x 10-8 then pKw Submit
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