.Analysis shows that a metal oxide has the empirical formula M0.98O1.00. Calculate the percentage of M2+ and M3+ ions in the crystal.

Question

Q. 6.Analysis shows that a metal oxide has the empirical formula M0.98O1.00. Calculate the percentage of M2+ and M3+ ions in the crystal.

Ans. Let the M2+ ion in the crystal be x and M3+ = 0.98 – x Since, total charge on the compound must be zero, So, 2x + 3(0.98 – x) – z = 0 Or x = 0.94

% of M2+ =

% of M3+ = 100 – 97.9 = 2.1%

Answer 1