Question

How many molecules make up 32 g of Oz?

Answer 1

The correct answer is given in the picture

This ANSWER IS ONLY CORRECT WHEN Oz STAND FOR OZONE

Answer 2

Chemical formula of Oxygen is O2.

We know ,

1 mole of a substance contains 6.022×10^23, Avogadro’s Constat.

Here, Molar mass of O = 16u

And molar mass of O2 = 32u

And 32g of O2 = 1 mole of O2

It means that,

32g of O2 = 6.022×10^23 molecules