Answer: 228.7g/mole
Explanation:
Molar mass of Mn3O4
This shows that,
There are 3Mn
And 4 oxygen
Molar mass of Manganese is 54.9
Molar mass of oxygen is 16
Molar mass of Mn304
=3(54.9)+4(16)
=164.7+64
=228.7g/moles
