Question- An ideal gas mixture containing 30.0 mol% nitrogen dioxide and 70.0 mol% argon is to be prepared by allowing gaseous argon to fill an evacuated 35.0 L cylinder to a pressure of 3.75 bar. The temperature is 290 K. a) What mass of nitrogen dioxide gas NO2 must then be added to the cylinder to give the desired composition, if the volume of the cylinder and temperature remain constant? b) What is the total pressure of the final gas mixture?
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