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By mistake, a worker at an electroplating shop mixes a small amount of sulfuric acid into a large tank of wastewater containing sodium cyanide. The reaction produces a toxic gas, hydrogen cyanide, as shown below:
H2SO4 + 2 NaCN -----> Na2SO4 + 2 HCN
a. If 1.50 Liters of pure liquid H2SO4 (density = 1.35 g/mL) are mixed into the tank, how much HCN is formed (kg)?
b. Suppose that 6.0 kg of HCN gas is formed and the temperature is 25 oC and the pressure is 1.0 atm. One value of the ideal gas law constant is R = 0.08206 (L-atm)/(gmol-K). Calculate the volume of the HCN gas that was formed (L).
c. Suppose the volume of HCN was actually 2500 L, and the room measures 20 m x 35 m x 5 m. What is the concentration of HCN in the air in this room in ppm?
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