5. How many grams of cobalt are in 1.52 x 1024 atoms of cobalt?

149 g of cobalt are present in 1.52 x atoms of cobalt.

Explanation:

One mole of an atom is equal to the Avagadro number of the atom.

The number of atoms per mol is divided by the given atoms of Cobalt.

                =  

                = 2.52 mol of Co

To covert, the moles into grams multiply the mole value by its molar mass

The Molar mass of Cobalt is 58.93

                = 2.52 58.93

                = 149 g.      

the answer is minerals.

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