Hydrogen cyanide hcn is a poisonous gas. the lethal dose is, Ask an Expert

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Hydrogen cyanide, HCN, is a poisonous gas. The lethal dose is approximately 300 mg HCN per kilogram of air when inhaled. Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 10. 15 8.5 ft. The density of air at 26°C is 0.00118 g/cm3

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