For the reaction- 4AJs- 3O 2 g-6H 2 Ol-4OH - aq- 4 -AJOH 4 - aq- E cell -2-73 V-If - G f O H - -157 kJ mo l -1 and - G f H 2 O-237-2 kJ mo l -1 - determine - G f -AJOH 4 -

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Heat of Formation

For the react...

Question

For the reaction, $4 A J (s) + {3 O}_{2} (g) + 6 H_{2} O (l) + 4 O H^{-} (a q) \to 4 [A J (O H)_{4}^{-} (a q)];$ $E_{c e l l} = 2.73 V . I f Δ G_{f} (O H^{-}) = - 157 k J m o l^{- 1}$ and $Δ G_{f} (H_{2} O) = - 237.2 k J m o l^{- 1},$ determine $Δ G_{f} [A J (O H)_{4}^{-}]$

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4 A l (s) + 3 O_{2} (g) + 6 H_{2} O + 4 O H^{-} ⇋ 4 [A l (O H)_{4}^{-}]

E_{c e l l}^{\circ} = 2.73 V

Δ G_{f}^{\circ} (O H^{-}) = 157 k J m o l^{- 1}

Δ G_{f}^{\circ} (H_{2} O) = - 237.2 k j m o l^{- 1}

Δ G_{f}^{\circ} [A l (O H)_{4}]

4 A l (s) + 3 O_{2} (g) + 6 H_{2} O + 4 ⊖ O H \to 4 [A l (O H)_{4}]^{\oplus}

E_{c e l l}^{⊖} = 2.73 V

Δ_{f} G^{⊖} [\oplus O H] = - 157 k J m o l^{- 1}

Δ_{f} G^{⊖} (H_{2} O) = - 237.2 k J m o l^{- 1}

Δ_{f} G^{⊖} [A l (O H)_{4}]^{⊖}

(A l (O H)_{4}^{⊖}]

Δ G_{f}^{⊖}

A g^{\oplus} (a q) + C l^{⊖} (a q) \to A g C l (s)

Δ G^{⊖_{A g C l}} = - 109 k J m o l^{- 1}

Δ G_{(C l^{⊖})}^{⊖} = - 129 k J m o l^{- 1}

Δ G_{(A g^{\oplus)}}^{⊖} = - 77 k J m o l^{- 1}

C u (s) + 2 {A g}^{+} (a q) \to {C u}^{2 +} (A q) + 2 A g (s)

(K)

E_{c e l l}^{\circ} = 0.46 V

2 F e^{3 +} (a q) + 2 I^{-} (a q) \to 2 F e^{2 +} (a q) + I_{2} (s)

E_{c e l l}^{\circ} = 0.236 V

298 K

1 F = 96, 500 C m o l^{- 1})

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