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Calculating the amount of charge from th...

Calculating the amount of charge from the amount of product in an electrolysis: How many amperes must be passed through a Downs cell to produce sodium metal a rate of `30.0 Kg//h.`
Strategy : Producted through a sequence of conversion similar to that in worked Example 3.26 but in reverse order
`Na^(+1) + e^(-) rarr Na`
The electrode equation for sodium says that `1` mol `Na` is equiva-lent to `1` mole `e^(-)`. We can use this in the conversion of grams of `Na`. The Faraday constant (which says that one mole of electrons is equivalent to `9.65 xx 10^(4)C`) converts mole of electrons to cou-lombs. The conversions are
`g Na rarr mol Na rarr mol e^(-) rarr "coulombs" (C)`
The current in ampres `(A)` equals the charge in coulombs divided by the time in seconds.

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