Chromium (Cr) is a metal that is added to steel to improve its resistance to corrosion. Calculate both the number of moles in a sample of Cr containing 5.00 x 1020 atoms and the mass of the sample.
Added by Kenneth O.
Step 1
00 x 10^20 atoms. Given: Number of atoms of Cr = 5.00 x 10^20 atoms Avogadro's number = 6.022 x 10^23 atoms/mol Number of moles = (5.00 x 10^20 atoms) / (6.022 x 10^23 atoms/mol) Number of moles ≈ 8.30 x 10^-4 moles Show more…
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