You have 20g of cobalt. How many atoms of cobalt is this?

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You have 20g of cobalt. How many atoms of cobalt is this?

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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Hi Brent You need to know the molar mass of cobalt ( 58.933 g/mol) Convert 20 g of cobalt to moles Do this by multiplying the given mass by the molar mass 20g x 1mol/58.933 grams =.339 mol Then, to determine the 3 of atoms, use Avogadro's number( 1 mol of any atom has 6.022 x 10^23 atoms) You have .339 mol, so, 0.339 x 6.022 x 10^23= 2.04 x 10^23 ( or 2 x 10^23) if you want to use the correct number of sig figs. Good luck....

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