Question

calculate the gram atomic mass of one atom of oxygen (gram atomic mass of oxygen =16gm)

Answer 1

mass of 1 Oxygen atom =2.65 x 10^-23 g

Answer 2

1 mole of oxygen = 16 gm

6.022 × 10^23 moles of oxygen = 16 × 1

= 16/6.022 × 10^23

= 2.65 × 10^-23 gm