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Iron oxide ha...

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Iron oxide has formula Fe₀.₉₄O : What fraction of Fe exists as Fe⁺³ ?

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Q. Iron oxide has formula

F e_{0.96} O_{1.00}

. What fraction of Fe exists as

F e^{+ 2} and F e^{+ 3}

({F e}_{0.94} O)

exist. What reaction of iron ions i.e.

{F e}^{2 +}

{F e}^{3 +}

present in this? Calculate their percentage.

Q. Formula of iron oxide with metal deficiency defect in its crystal is

F e_{0.94} O

. The crystal contains

F e^{2 +} and F e^{3 +}

. The mole percentage of

F e

F e^{3 +}

ion in the crystal is:
[0.77 Mark]

Q. Determine the empirical formula of an oxide of iron which has

69.9 %

30.1 %

(F e = 55.85 a m u; O = 16.00 a m u)

Q. Analysis shows that nickel oxide has the formula

N i_{0.98} O

. What fractions of the nickel exist as

N i^{2 +}

?

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