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If 1.65 moles of an ideal gas has a pressure of 2.56 atm and a volume of 81.95 L, what is the temperature of the sample? 

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Identify the orbital represented by the quantum numbers given below:

n = 3                    l = 1                                m      l = 0                        m   s = -1/2

 

Now select the electron represented by the quantum numbers.


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Find all four quantum numbers (n, l, ml, and ms) for the selected electron below. Select the correct answer for each quantum number. 


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Exercise 41. Sketch the galvanic cells based on the following half-reactions. Show the direction of electron flow, show the direction of ion migration through the salt bridge, and identify the cathode and anode. Give the overall balanced equation, and determine ε° for the galvanic cells. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.

b. MnO4 - + 8H + 5e-  → Mn 2+ + 4H2O      ε° = 1.51 V 

    IO4 - + 2H + + 2e- → IO3 - + H2O              ε° = 1.60 V

Calculate ΔG° and K at 25°C for the reaction above.

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Exercise 41. Sketch the galvanic cells based on the following half-reactions. Show the direction of electron flow, show the direction of ion migration through the salt bridge, and identify the cathode and anode. Give the overall balanced equation, and determine ε° for the galvanic cells. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.

a. Cl2 + 2e- → 2Cl -        ε° = 1.36 V 

    Br2 + 2e- → 2Br -       ε° = 1.09 V

Calculate ΔG° and K at 25°C for the reaction above.

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