What is the mass in grams of 1.204 x 10^24 atoms of carbon?

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What is the mass in grams of 1.204 x 10^24 atoms of carbon?

414.14g

Explanation:

From Avogadro's hypothesis, we understand that 1mole of a substance contains 6.02x10^23 atoms.

From the above, it is evident that 1mole of Pb will also contain 6.02x10^23 atoms.

1mole of Pb = 207g/mol

207g of Pb contains 6.02x10^23 atoms.

Therefore, Xg of Pb will contain 1.2044 x 10^24 atoms i.e

Xg of Pb = (207x1.2044x10^24)/6.02x10^23 = 414.14g