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An apparatus to be used in a decomposition study was filled with N2 gas at 400.00 mm Hg and 400.0 deg C. The volume of the apparatus was 400.0 mL.
a) What mass of N2 was in the apparatus?
b) The apparatus was then heated to 1200.0 deg C. If the volume of the apparatus could not change, what would be the pressure of the N2 at that pressure?

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