By passing electric current , NaclO3 is converted into NaclO4 . How many moles of NaclO4 will be formed when 3 faradays of charge is passed through NaclO3 ?

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By passing electric current , NaclO3 is converted into NaclO4 . How many moles of NaclO4 will be formed when 3 faradays of charge is passed through NaclO3 ?

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shantanukrishan8239 30th May, 2021

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RAJDEEP 11th Jun, 2021

The balanced chemical equation for above question is-

NaClO3 + H2O -> NaClO4 + H2

The oxidation state of Cl atom in NaClO3 is +5 and the oxidation state of Cl atom in NaClO4 is +7. So, the net change in oxidation state = 7-5 = +2.

This show that 2 faradays of charge is required to get 1 mole of NaClO4.

So if 1 faradays of charge is passed through NaclO3 then (1/2) mole of NaClO4 obtained.

Then 3 faradays of charge is passed through NaclO3 then (1/2)x3 mole of NaClO4 obtained that is 1.5 mole NaClO4 is obtained.

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