Archeologists removed some charcoal from a Native American campfire, burned it in O2, and bubbled the CO2 formed into Ca(OH)2 solution (limewater). The CaCO3 that precipitated was filtered and dried. If 4.58 g of the CaCO3 had a radioactivity of 3.2 d/min, how long ago was the campfire?

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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...

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Archeologists removed some charcoal from a Native American campfire, burned it in O₂, and bubbled the CO₂ formed into Ca(OH)₂ solution (limewater). The CaCO₃ that precipitated was filtered and dried. If 4.58 g of the CaCO₃ had a radioactivity of 3.2 d/min, how long ago was the campfire?

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