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Chromium metal can be plated out from an acidic solution containing CrO_3according to the following equationCrO3_(aq) + 6H^(+)(aq) + 6etoCr(s) + 3H_2OCalculate (i) how many grams of chromium will be plated out by 24000 coulombs, and (ii) how long will it take to plate out 1.5 g of chromium by using 12.5 amp current? |
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Answer» Solution : Eq. of CR DEPOSITED = FARADAY of ELECTRICITY passed ` = 24000/96500` and eq. wt. of chromium ` = 52/6` 2.1554g, 1336 g |
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