Write Nernst equation and calculate e-m-f- of the following cell at 298 KPt-s- -Br2l- -Br -0-010 M- -H -0-030 M- -H2-g- -1 bar- -Pt-s- E-Pt- Br- Br 1-09 V-

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Write Nernst ...

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Write Nernst equation and calculate e.m.f. of the following cell at 298 KPt(s) \vert Br2l) \vert Br (0.010 M) \vert\vert H (0.030 M) \vert H2(g) (1 bar) \vert Pt(s) E(Pt, Br, Br 1.09 V)

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P t_{(s)} | B r_{2 (l)} | B r^{-} (M) | | H^{+} (M) | H_{2 (g)} (1 b a r) | P t_{(s)}

Write the Nernst equation and emf of the following cells at 298 K:

(i) Mg(s) | Mg²⁺(0.001M) || Cu²⁺(0.0001 M) | Cu(s)

(ii) Fe(s) | Fe²⁺(0.001M) || H⁺(1M)|H₂(g)(1bar) | Pt(s)

(iii) Sn(s) | Sn²⁺(0.050 M) || H⁺(0.020 M) | H₂(g) (1 bar) | Pt(s)

(iv) Pt(s) | Br₂(l) | Br⁻(0.010 M) || H⁺(0.030 M) | H₂(g) (1 bar) | Pt(s).

y = | x^{2} - | x | | a t x = - 2.

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