If a sample of pure silver (ag) contains 3.35 x 1022 atoms of silver, how many moles of silver are in the sample? a) 17.9 mol b) 2.82 mol c) 0.180 mol d) 0.0556 mol

the answer is D 0.0556 mol

divide the given number of atoms 3.35x10^22 by 6.02x10^23 Avogadro's number(the number of atoms in one mol of anything) to get the total number of Moles. It's merely a fraction of a whole. 3.35/60.2 if you cancel out the tens.   1.0 mol mercury(the molar mass is the mass number on a periodic table) It couldn't possibly be so few atoms is to be gold or atoms of mercury as there are 6.02x10^23 atoms in a 0.0556 mol.  

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explanation:

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