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A moon rock collected by the Apollo Mission is estimated to be 3.80 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206pb in the rock, given that it currently contains 1.180 g of 238U? The half-life of 238U is 4.47x10° years. Report your answer in grams (do not include the units in the response box) HINT: The decay process is 238U 206 pb, you will need to account for the differences in molar mass in your calculation.

A moon rock collected by the Apollo Mission is estimated to be 3.80 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206pb in the rock, given that it currently contains 1.180 g of 238U? The half-life of 238U is 4.47x10° years. Report your answer in grams (do not include the units in the response box) HINT: The decay process is 238U 206 pb, you will need to account for the differences in molar mass in your calculation.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter21: Nuclear Chemistry
Section: Chapter Questions
Problem 21.54QE
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A moon rock collected by the Apollo Mission is estimated to be 3.80 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206pb in the rock, given that it currently contains 1.180 g of 238U? The half-life of 238U is 4.47x10 years. Report your answer in grams (do not include the units in the response box) HINT: The decay process is 238U206pb, you will need to account for the differences in molar mass in your calculation.
Transcribed Image Text:A moon rock collected by the Apollo Mission is estimated to be 3.80 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206pb in the rock, given that it currently contains 1.180 g of 238U? The half-life of 238U is 4.47x10 years. Report your answer in grams (do not include the units in the response box) HINT: The decay process is 238U206pb, you will need to account for the differences in molar mass in your calculation.
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