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# 1) A 50.0 L cylinder of Ar has a pressure of 137 atm at 25 C. What mass of Ar is inside the cylinder?

1) A 50.0 L cylinder of Ar has a pressure of 137 atm at 25 °C. What mass of Ar is inside the cylinder? -----------------------------------------------------------

2) The lid is tightly sealed on a rigid flask containing 3.50 L H2 at 17 °C and 0.913 atm. If the flask is heated to 71 °C, what is the pressure in the flask?------------------------------------------------------------------------------------------------------

3) A 0.225-L flask contains CH4 at 27 °C and 318 mm Hg. What is the pressure of the CH4 if the volume is increased to 0.500 L and the temperature increased to 95 °C?

1) PV = nRT R = 0.0821 atm L / K(elvin) mole P = 137 V = 50 T = 225 °C = 298 K n = PV/RT = 137*50/0.0821*298 =... View the full answer

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