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An Atom of Zinc Has a Mass of 65

Question 15

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An atom of zinc has a mass of 65.39 amu.One of its isotopes, An atom of zinc has a mass of 65.39 amu.One of its isotopes, ,has an 18.75% abundance.Since 1 amu = 1.6606 x 10<sup>-24</sup> g,how many of atoms of this zinc isotope would be present in a 1.00 g sample of zinc? A) 9.209 x 10<sup>21</sup> atoms B) 4.911 x 10<sup>22</sup> atoms C) 1.727 x 10<sup>21</sup> atoms D) 4.762 x 10<sup>2</sup><sup>1</sup> atoms ,has an 18.75% abundance.Since 1 amu = 1.6606 x 10-24 g,how many of atoms of this zinc isotope would be present in a 1.00 g sample of zinc?


A) 9.209 x 1021 atoms
B) 4.911 x 1022 atoms
C) 1.727 x 1021 atoms
D) 4.762 x 1021 atoms

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