Question

What will be the mass of one $^{12}C$ atom in g?

Answer 1

1 mole of carbon atoms = 6.023 × 1023 atoms of carbon
= 12 g of carbon
∴ Mass of one $^{12}C$ atom = $\frac {12\ g }{6.022 × 10^{23}}$
= 1.993 × 10-23 g