The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7x 10¹0 decay events per second (the number of decay events from 1 g of radium in 1 s). (a) What mass of Na, 38SO, has an activity of 11.7 mCi? Sulfur-38 has an atomic mass of 38.0 and a half-life of 2.87 h.
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7x 10¹0 decay events per second (the number of decay events from 1 g of radium in 1 s). (a) What mass of Na, 38SO, has an activity of 11.7 mCi? Sulfur-38 has an atomic mass of 38.0 and a half-life of 2.87 h.
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
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 68AE
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Transcribed Image Text:The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7x 10¹0 decay events per second (the number of decay events from 1 g of radium in 1 s).
(a) What mass of Na₂ 38SO has an activity of 11.7 mCi? Sulfur-38 has an atomic mass of 38.0 and a half-life of 2.87 h.
4
2.71e-14
X ng
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