in 0.056 g of
alumina
Answer:
Molecular
mass of alumina
=
Gram molecular mass = 102 g
mol of alumina 
= 102 g
102 g of 
= 1 mol
0.056 g of 
We know that one mol of alumina contains 2 mol of 
ions.
of 
contains 
mol
Number of 
ions in 0.056 g = 2 x 5.49 x 10-4
x 6.022 x 1023
= 6.613 x 1 Onions of
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