State gas-washing bottle containing aqueous ammonium iodide

Reference no: EM13167358

A stream of oxygen was passed at a rate of 20mL per minute at S.T.P. for 1 hour through a silent electric discharge followed by a gas-washing bottle containing aqueous ammonium iodide. The resulting triiodide required 85mL 0.15 M thiosulfate. What was the mole percentage of ozone in the gas coming from the discharge tube? These equations may be helpful: 2NH4+ + O3 + 3I- ? I3- + O2 + H2O + 2NH3 and 2S2O32- + I3- ? S4O62- + 3I-

Reference no: EM13167358

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