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Chromium metal can be plated out from an...

Chromium metal can be plated out from an acidic solution containing `CrO_(3)` according to the following equation: `CrO_(3)(aq)+6H^(+)(aq)+6e rarr Cr(s)+3H_(2)O` (1) How many grams of chromium will be plated out by 24000C?

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`CrO_(3)(aq)+6H^(+)(aq)+6e rarr Cr(s)+3H_(2)O`
52 g of Cr is deposited by `6xx96500C` of electric current.
`" "[because " atomic mass of Cr = 52 g.mol"^(-1)]`
(1) Given, 24000 C curreent is passed.
`therefore" Amount of Cr plated out "=(52xx24000)/(6xx96500)=2.155g`
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