Question

6.4g of kg oxygen gas will contain --------number of oxygen molecule​

Answer 1

Answer:

1.2046×10²³

molecules

Explanation:

Molar mass of oxygen =32g/mol

Moles in 6.4 g oxygen =

32

6.4

=0.2 moles

Number of O

2

molecules in 0.2 mole =0.2×6.023×10

23

=1.2046×10

23

molecules