Question

what is the mass of 0.2 mole of O2 atom ​

Answer 1

Explanation:

Mole = 0.2

For O2

Molecular weight = 32

Moles = given weight / Molecular weight

0.2 = given weight / 32

given weight = 6.4 grams

Answer 2

Answer:

3.2g

Explanation:

Mass of O2 = 8 x 2 = 16g

No of mole = 0.2

Mass of 0.2 mole 02 = No of mole x Mass of O2 = 0.2 x 16 = 3.2g