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What is the relationship between molar mass and electro chemical equivalent. Derive the equation. |
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Answer» SOLUTION :(i) Consider the following general electro chemical redox reaction `M^(n+)(aq) + n e^(-) to M_((s))` (II) We can infer from the above equation that .n. moles of electrons are required to precipitate 1 mole of `M^(n+)` as `M_((s)).` (iii) The quantity of CHARGE required to precipitate 1 mole of `M^(n+)` = Charge of .n. moles of electrons = nF (IV) In other words, the mass of the substance deposited by one couloumb of charge Electro chemical EQUIVALENT `M^(n+) = ("Molar mass (M)")/(n(96500))` (or) `Z = ("Equivalent mass")/(96500)`. |
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