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Cooling with co2? Student measures a pressure of 775mmHg for a volume of 565 mL. Calculate the pressure for the same experiment with a volume of 585 mL.? What is the concentration of CO in ppm and percent by volume of 103 micrograms/m^3? assume a temp of 25C and pressure of 1atm? Calculate the limit and explain why it does not exist? Chemistry help?? URGENT?