Find the average atomic mass for Li if 7.5% of Li atoms are Li-6 with a mass of 6.0151223 amu and 92.5% are Li-7 with a mass of 7.0160041 amu.

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ChapterU1: Alchemy: Matter, Atomic Structure, And Bonding
SectionU1.13: Subatomic Heavyweights: Isotopes
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Find the average atomic mass for Li if 7.5% of Li atoms are Li-6 with a mass of 6.0151223 amu and 92.5% are Li-7 with a mass of 7.0160041 amu.

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