HCN forms when synthetic fibers containing Orlon or Acrilan burn. Acrilan has an empirical formula of CH_{2}CHCN, so HCN is 50.9% of the formula by mass. A rug in the laboratory measures 12.0 × 11.0 ft and contains 30.0 oz of Acrilan® fibers per square yard of carpet. If the rug burns, what mass of HCN will be generated in the room? Assume that the yield of HCN from the fibers is 20.0% and that the carpet is 36.0 % consumed.

Express your answer to three significant figures and include the appropriate units.

Hydrogen cyanide, HCN, is a poisonous gas. The lethal dose is approximately 300 mg HCN per kilogram of air when inhaled. The density of air at 26°C is 0.00118 g/cm^{3}.

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