Chemistry, 25.02.2020 03:36 destmacklin
The carbon monoxide, CO, in a 20.3 L sample was converted to carbon dioxide, CO2, by passing the gas over iodine pentoxide, I2O5, heated to 150ï‚°C: 5 CO(g) + I2O5(s) ï‚® 5 CO2(g) + I2(g) The iodine, I2, gas was collected in an absorber containing 8.25 mL of 0.01101 CM Na2S2O3: I2(g) + 2 S2O3 2ï€(aq) ï‚® 2 Iï€(aq) + S4O6 2ï€(aq) The excess Na2S2O3 was back-titrated with 2.16 mL of 0.00947 M I2 solution. What is the concentration of CO in the air sample in units of mg CO per liter
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