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Ammonium perchlorate, `NH_4ClO_4`, used in the solid fuel in the booster rockets on the space shuttle, is prepared from sodium perchlorate, `NaClO_4`, which is produced commercially by the electrolysis of a hot, stirred solution of sodium chloride. How many faradays are required to produce 1.0 Kg of sodium perchlorate?
`NaCl+4H_2O->NaClO_4+4H_2`