One of the methods of preparation of per disulphuric acid, H2S2O8 invo – InterviewSolution

1.	One of the methods of preparation of per disulphuric acid, H2S2O8 involve electrolytic oxidation of H2SO4 at anode (2H2SO4→H2S2O8+2H++2e−) with oxygen and hydrogen as by-products. In such an electrolysis, 10.08L of H2 and 2.24 L of O2 were generated at STP. What is the weight of H2S2O8 formed?
Answer» One of the methods of preparation of per disulphuric acid, $H_{2} S_{2} O_{8}$ involve electrolytic oxidation of $H_{2} S O_{4}$ at anode $(2 H_{2} S O_{4} \to H_{2} S_{2} O_{8} + 2 H^{+} + 2 e^{-})$ with oxygen and hydrogen as by-products. In such an electrolysis, $10.08 L of H_{2}$ and 2.24 L of $O_{2}$ were generated at STP. What is the weight of $H_{2} S_{2} O_{8}$ formed?

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