Consider the formation of HCN by the reaction of NaCN (sodium cyanide) with an acid such as H2SO4 (sulfuric acid):
2 NaCN(s) + H2SO4(aq) → Na2SO4(aq) + 2 HCN(g)
What mass of NaCN gives the lethal dose in the room?
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/cm3.
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