You have purchased a gas cylinder that is supposed to contain 5.0 mole%
To check this hypothesis, you bubble gas from the suspicious cylinder through 2.0 L of an aqueous NaOH solution (12.0 wt% NaOH, SG = 1.13) for exactly one hour. The inlet gas is metered at a gauge pressure of 510 mm H2O and a temperature of 23°C. Prior to entering the vessel, the gas passes through a flowmeter that indicates a how rate of 2.00 L/mm. At the conclusion of the experiment, a sample of the residual NaOH solution is analyzed and the results show that the NaOH content has been reduced by 23%. What is the concentration of Cl2in the cylinder gas? (Assume the Cl2is completely consumed in the reaction
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