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  • Help with Chemistry and Fractional Abundance?

    The two naturally occurring isotopes of copper are copper-63, with a mass of 92.9298u and copper-65, with a mass of 64.9278u. If the tabulated atomic mass of copper is 63.546u, what must be the percent natural abundances of the two isotopes? Please solve for x - it has been too many years since algebra.

    Thanks

    1 AnswerChemistry1 decade ago