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12-10-2022
Chemistry

contestada

The average atomic mass of boron is 10.81 amu. Based on the atomic mass
of B-10 and the relative abundances of the boron isotopes, what is the atomic
mass of B-11?
Isotope
B-10
B-11
Atomic mass (amu)
10.013
OA. 12.434 amu
OB. 11.009 amu
OC. 9.084 amu
OD. 11.801 amu
Relative abundance (%)
19.9
80.1
E

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