2) At what temperature will 5.00 grams of chlorine gas (C12) exert a pressure of 900, torr if it is stored at a volume of 750 mL. Report your answer in both Kelvin and °C.

Explanation:

May 15, 2009 · T = temperature (kelvin) Firstly, we have to find n because you are only given the mass of chlorine given. Chlorines Mr (molar mass) is 35.5, therefore 71 for Cl2. Moles = Mass / Molar Mass => 5 / 71 = 0.0704 moles. You also have pressure in a (well almost) prehistoric, non-SI unit. 1 torr = 133.3 Pa, so to convert multiply number of torss by this figure:

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.