5. A 1.5 liter air sample complete with ethanol. Chloride after transfer to solution precipitate ions in the precipitate 15.00 ml of 0.0500 M AgNO3 solution for titration of excess of the remaining amount 13.50 ml of 0.0500 M KSCN are consumed. The concentration of methyl chloride (CH3Cl) in the air sample (g / l) is calculated.

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