For the redox reaction above label the oxidizing and reducing agents 4 9

For the redox reaction above label the oxidizing and

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For the redox reaction above, label the oxidizing and reducing agents. /49) Consider two gases, each in a 1.0-L container with both gases at the same temperature and pressure. The mass of gas A in the container is 0.34 g and the mass of gas B in the container is 0.48 g. a)Which gas sample has the most molecules present? Explain.
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10) A balloon filled with 39.1 mol helium (He) has a volume of 876 L at 0.0oC and 1.00 atm pressure. The temperature of the balloon is increased to 38.0oC as it expands to a volume of 998 L, the pressure remaining constant. For a-c, calculate the following quantities for the helium in the balloon. The molar heat capacity for helium gas is 20.8 J/oCmol)a) q/6b) w/6c) EΔ/6f)Use an argument based on the 1stLaw of thermodynamics to explain how much energy is transferred to or from the surroundings. Since energy of the universe is conserved, Energy out of surroundings is energy into system, so -18.5 kJ. /411) HINT: We did not discuss the use of molarity with the ideal gas law in lecture. We did discuss how to write an expression including density and MM starting from the ideal gas law. This question requires you to apply the skills used in those derivations to a new situation. a) Assume you have a container that holds a mixture of oxygen gas (O2, MM = 31.998 g/mol)and nitrogen gas (N2, MM= 28.014 g/mol) except for a small hole that slowly allows gas to escape into a vacuum.
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  • Spring '08
  • Kenney

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