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You measure the initial mass of the cathode to be
25.05 ± 0.10 g, and the final mass to be 24.12 ±0.05g.
If a current of 0.45±0.05A flowed for 100±0.5 min,
what do you calculate for a value of e?
(M=63.54g/mol, NA-6.022x1023 atoms/mol)
x10-¹⁹ C

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