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OpenStudy (anonymous):
Boron has two isotopes, one with a mass of 10 and the other with a mass of 11. Given that boron has an atomic mass of 10.8, what is the fractional abundance of 10B?
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OpenStudy (anonymous):
\[10*x+11*(1-x)=10.8\] Solve for x and the fractional abundance of 10B is 20%.
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