Determine a massa de um átomo de carbono12 em gramas

The mass of an atom of carbon-12 is 1.993 * 10⁻²³ g.

1 C atom has a mass of 12 u.

1 mol of C atoms has a mass of 12 g.

∴ Mass of 1 C atom = 12 g/6.022 * 10²³ C atoms = 1.993 * 10⁻²³ g

I believe it would be 1.660539040 * 10-24 gram.