How many atoms are in 165 g of calcium?

Explanation:

According to the mole concept, 1 mole of every atom contains atoms.

It is given that mass is 165 g and molar mass of calcium atom is 40.078 g/mol.

Hence, number of moles of calcium atom will be calculated as follows.

                No. of moles =

                                      =

                                      = 4.117 mol

Therefore, atoms present in 4.117 mol of calcium are as follows.

                atoms/mol.

                   = atoms

Thus, we can conclude that there are atoms in 165 g of calcium.

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