Problem: An old asteroid is found. A rock from it yields 1.84 g of  238U92 and 4.22 g of  206Pb82. The molar mass of 206Pb82 is 205.974 g/mol, the molar mass of  238U92 is 238.029 g/mol, and the half-life of  238U92 is 4.46 x 109 years. How old is this asteroid? Express your answer with the appropriate units.

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An old asteroid is found. A rock from it yields 1.84 g of  238U92 and 4.22 g of  206Pb82. The molar mass of 206Pb82 is 205.974 g/mol, the molar mass of  238U92 is 238.029 g/mol, and the half-life of  238U92 is 4.46 x 109 years. 

How old is this asteroid? Express your answer with the appropriate units.

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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.