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Common Ion Effect

Why in FeO an...

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Why in FeO and FeO3 fe mass of Fe is taken in parts

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Q. Mole ratio of

F e

F e O

{F e}_{2} O_{3}

{F e}_{3} O_{4}

samples of equal mass is:

Q. Calculate the weight of

V_{2} O_{5}

5.75

F e_{2} O_{3}

.

V O + F e_{2} O_{3} \to F e O + V_{2} O_{5}

= 56

= 51

= 16

)

Q. One mole sample of

F e O

is heated in air until it is completely converted into

F e_{2} O_{3}

. The percentage increase in weight of the sample is?

[Given: Atomic mass of Fe = 56]

Q. The following two reactions are known

F e_{2} O_{3 (s)} + 3 C O_{(g)} \to 2 F e (s) + 3 C O_{2 (g)}

Δ H = - 26.8 k J

F e O_{(s)} + C O_{(g)} \to F e_{(s)} + C O_{2 (g)} Δ H = - 16.5 k J

Δ H

for the following reaction is:

F e_{2} O_{3 (s)} + C O_{(g)} \to 2 F e O_{(s)} + C O_{2 (g)}

F e O

2

V O

5.75

{F e}_{2} O_{3}

is (as nearest integer) :

V O + {F e}_{2} O_{3} \to F e O + V_{2} O_{5}

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