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A 9m^3 room contains a canister of CO2 with a faulty valve. At a level of 75 mole % CO2, breathing the air becomes lethal. The room temperature is 25 degrees Celcius.

A) If the concentration of CO@ reaches the lethal 75 mole % level, what would be the mole % of O2?

B) How much CO2 (kg) is present in the room when the lethalconcentration is reached

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