brookehell0 brookehell0

14-02-2017
Chemistry

contestada

a fictitious element X is composed of 15.0% of the isotope X-51, 15.0% of the isotope X-52, and 70.0% of the isotope X-53. Estimate the atomic mass of element C

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gaminguy8 gaminguy8

28-02-2017

(0.15)(51) + (0.15)(52) + (0.7)(53)
=53 amu

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