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Daniela Corinaldesi
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Joined: 05 Nov 2017
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Quimica


¿Cómo es esta reacción?
Fe2(SO4)3 + Na2S2O3 =
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ChenBeier
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Fe3+ + e- => Fe2+ Reduktion

S2O3 2- + 5 H2O => 2 SO4 2- + 10 H+ + 8 e- oxidation

KGV = 8 for electrons

8 Fe3+ +8 e- => 8 Fe2+

Addition

8 Fe 3+ + S2O3 2- + 5 H2O => 2 SO4 2- + 10 H+ + 8 Fe2+

add of SO4 2- and Na+

4 Fe2(SO4)3 + Na2S2O3 + 5 H2O => 5 H2SO4 + 8 FeSO4 + Na2SO4

finished
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