Partial pressures of helium and argon
A 295- flask contains pure helium at a pressure of 757 . A second flask with a volume of 460 contains pure argon at a pressure of 713. What are the partial pressures of helium and argon? What is the total pressure?
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5.0 gram sample of KBr at 25 degrees Celsius dissolves in 25 mL of water also at 25 degrees Celsius. The final equilibrium temperature of the resulting solution is 18.1 Celsius. What is the enthalpy of solution delta-heat of KB4 expressed in kilo
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The pollutant has a reaction rate coefficient K of 0.25/day. Assuming the pollutant is well mixed in the lake, find the steady-state concentration of pollutant in the lake.
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