Question

what is the mass of 0.8 mole of sodium atom

Answer 1

Mass = mole*molar mass
= 0.8*23
= 18.4 g

Answer 2

Answer:

0.8 mole of Sodium atom

= 0.8 × 6.022 × 10^23

= 48.176 g

Formula:

Mass = Number of mole × Avogadro Number