When an alkaline solution of K2CrO4 is treated with 3% H2O2 solution, red brown paramagnetic peroxochromate is obtained as per following equation: 2K2CrO4 + 7H2O2 + 2KOH → 2K3CrO8 + 8H2O The equivalent weight of K2CrO4 for above transformation must be (assuming M is the molar mass of K2CrO4):

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When an alkaline solution of K2CrO4 is treated with 3% H2O2 solution, red brown paramagnetic peroxochromate is obtained as per following equation: 2K2CrO4 + 7H2O2 + 2KOH → 2K3CrO8 + 8H2O The equivalent weight of K2CrO4 for above transformation must be (assuming M is the molar mass of K2CrO4):