Calculate the number of atoms in 0.0340 g Zn.

moles Hg = 25.8 / 200.59 = 0.129

atoms = 0.129 x 6.02 x 10^23 =7.74 x 10^22

Moles Zn = 0.0340 / 65.39 =0.000520

atoms = 3.13 x 10^20

work in the same way : divide the mass by the molar mass and multiply by 6.02 x 10^23

Explanation:

3

explanation:

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