Question

During the preparation of H2S2O8 (per disulphuric acid) O2 gas also releases at anode as byproduct, When 9.72 L of H2 releases at cathode and 2.35 L O2 at anode at STP, the weight of H2S2O8 produced in gram is

• A. 87.12
• B. 43.56
• C. 83.42
• D. 51.74

Answer 1

Answer: (B)

43.56

Answer 2

$\frac{9.72}{22.4} \times \frac{2.35}{22.4} \times \frac{W}{194} \times 2orW = 43.47g$