Question

Non-stoichiometric compound Fe0.94O is formed when x% of Fe2+ ions are replaced by as many 2/3rd Fe3+ ions, x is?

Answer 1

Answer:

18%

Explanation:

Non-stoichiometric compounds are the chemical compounds, that are always solid inorganic compounds and have an elemental composition whose proportions can't be represented by integers

Non-stoichiometric compound = Fe = 0.94O (Given)

The number of Fe3+ ions replacing x Fe2+ ions = 2x/3 vacancies of the cations  

The molecule is neutral therefore net positive = net negative

= x − 2x/3 =x/3  

But x/3 =1−0.94

=0.06,

x = 0.06×3  

= 0.18

= 18%

Thus, the ions replaced are 18%