Problem: A rock that contains 3.1×10−15 mol of 232Th (t1/2 = 1.4×1010 yr) has 9.5×104 fission tracks, each track representing the fission of one atom of 232Th. How old is the rock?  

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A rock that contains 3.1×10−15 mol of 232Th (t1/2 = 1.4×1010 yr) has 9.5×104 fission tracks, each track representing the fission of one atom of 232Th. How old is the rock?  

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the First Order Half Life concept. You can view video lessons to learn First Order Half Life. Or if you need more First Order Half Life practice, you can also practice First Order Half Life practice problems.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.