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What is the EMF of the cell: Pt, \( \mathrm{H}_{2} \) (1 atm) \( \mid \mathrm{CH}_{3} \mathrm{COOH}(0.1 \mathrm{M}) \|(0.01 \mathrm{M}) \mathrm{NH}_{4} \mathrm{OH} \) \( 1 \mathrm{H}_{2}(1 \mathrm{~atm}) \), Pt? Given: \( K_{\mathrm{a}} \) for \( \mathrm{CH}_{3} \mathrm{COOH}=1.8 \times \) \( 10^{-5}, K_{\mathrm{b}} \) for \( \mathrm{NH}_{4} \mathrm{OH}=1.8 \times 10^{-5}, 2.303 R T / F= \) \( 0.06, \log 1.8=0.25) \)
(a) \( 0.465 \mathrm{~V} \)
(b) \( -0.465 \mathrm{~V} \)
(c) \( -0.2325 \mathrm{~V} \)
(d) \( -0.93 \mathrm{~V} \)
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