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Assume that impure copper contains only ...

Assume that impure copper contains only iron, silver and a gold as impurities. After passage of `140A`, for `482.5` sec, of the mass of the anode decreased by `22.260g` and the cathode increased in mass by `22.011g`. Estimate the % iron and % copper originaly present.

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The correct Answer is:
98.88%, 0.88%
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