electrochemistry

Related Questions

• The cell reaction of a cell is, $M{{g}_{(s)}}+C{{u}^{2+}}(aq)\to C{{u}_{(s)}}+M{{g}^{2+}}(aq)$ If the standard reduction potentials of Mg and Cu are – 2.37 and + 0.34 V respectively. The emf of the cell is

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• Reduction potential of four elements P, Q, R, S is – 2.90, + 0.34, + 1.20 and – 0.76. Reactivity decreases in the order

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• The density of copper is $8.94 g-mL^{–1}$. Find the charge needed to plate an area of $10 \times 10 cm^2$ to thickness of $10^{–2}$ cm using a $CuS{{O}_{4}}$ solution as electrolyte (atomic weight of $Cu = 63.6$)

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• When $\Delta G=-100\,kJ\,mol{^{-1}}$ and $n = 1$, the potential of the cell is

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• Four colourless salt solutions are placed in separate test tubes and a strip of copper is placed in each. Which solution finally turns blue

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