Question

The total number of electrons in 32 g of
oxygen is.
A
9.6 x 1024
B
4.8 x 1025
C
4.8 x 1024
D
9.6 x 1025​

Answer 1

Explanation:

mole of a substance contains 6.022×10^23

Here, Molar mass of O = 16u

And molar mass of O2 = 32u

And 32g of O2 = 1 mole of O2

Therefore 32g of O2 has molecules = 6.022×10^23

Since 1 molecule of O2 has 2 atoms

Therefore 32g of O2 has atoms=2*6.02×10^23