Question:

Redox Equation Balancing

by Guest65731  |  earlier

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As2S3(s) NO3−(aq) → H3AsO4(aq) NO(g) S8(s)

How do you balance this equation? Thanks for any help in advance.

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  1. shouldnt there be a hydrogen on the reactants side?


  2. As2S3(s) + NO3− → H3AsO4(aq) + NO(g) + S8(s)

    3 ( 8As2S3  + 64H2O-->  16H3AsO4 + 3S8 + 80H+ + 80e-

    80 ( 4H+ + NO3-  +3e-  -->  NO + 2H2O

    --------------------------------------...

    24As2S3 + 192H2O + 320H+ + 80NO3- --> 48H3AsO4 + 9S8 + 240H+ +80NO + 160H2O

    Simplify

    24As2S3 + 32H2O + 80H+ + 80NO3- --> 48H3AsO4 + 9S8 + 80NO

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