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OpenStudy (anonymous):
How many moles of nickel (Ni) atoms are in 125 g Ni?
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OpenStudy (chmvijay):
can you tell Nickel atomic mass
OpenStudy (missmob):
125/58.69 = 2.12 mol 1.2 10^22 atom Hg= 1.22 10^22/(6.023 10^23) mole= 1.22 10^22/(6.023 10^23) x 200.59 gr = 39.29 gr 1 mole = 6.023 10^23 atoms
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