Ka for the reaction- Fe3-aq- - H2Ol - FeOH2-aq- - H3O-aq- is 6-5-10-3- What is the maximum pH value which could be used do that at least 80

The correct option is D 0.59 #160; #160; #160; #160; #160; #160; #160; #160; #160; Fe^3+(aq.) + H_2O(l) ⇌ Fe(OH)^2+(aq.) + ...

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Arrhenius Acid

Ka for the re...

Question

$K_{a}$ for the reaction; $F e^{3 +} (a q .) + H_{2} O (l) ⇌ F e (O H)^{2 +} (a q .) + H_{3} O^{+} (a q .)$ is $6.5 \times 10^{- 3}$ . What is the maximum $p H$ value which could be used do that at least $80 %$ of the total ion $(I I I)$ in a dilute solution exists as $F e^{3 +}$ ?

2

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2.41

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2.79

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0.59

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Similar questions

K_{a}

F e^{3 +}

F e (O H)^{2 +}

H^{\oplus}

6.5 \times 10^{- 3}

F e^{3 +}

F e^{3 +}

K_{a}

{F e}^{3 +}

H^{+}

6.5 \times 10^{- 3}

95

{F e}^{3 +}

{F e}^{3 +}

F e {(O H)}^{+ 2}

H^{+}

6.5 \times 10^{- 3}

p H

95

{F e}^{3 +}

{F e}^{3 +}

H_{2} O_{2} (a q) + F e^{2 +} (a q) \to F e^{3 +} (a q) + H_{2} O (l)

H_{2} C_{2} O_{4} (a q) + H_{2} O (l) ⇌ H_{3} O + (a q) + H C_{2} O_{4} - (a q)

H C_{2} O_{5} - (a q) + H_{2} O (l) ⇌ H_{3} O + (a q) + C_{3} O_{4}^{2} - (a q)

K_{c l} = 5.9 \times 10^{- 2}

K_{c 2} = 6.4 \times 10^{- 5}

25^{\circ} C

K_{c}

(3)

H_{2} C_{2} O_{4} (a q) + 2 H_{2} O (l) ⇌ 2 H_{3} O + (a q) + C_{2} O_{4}^{2} - (a q)

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