Problem: The Kb for methylamine, CH3NH2, at 25°C is 4.4 x 10-4a. Write the chemical equation for the equilibrium that corresponds to K b.b. By using the value of Kb, calculate ΔG° for the equilibrium in part a.c. What is the value of ΔG at equilibrium?d. What is the value of ΔG when [H +] = 1.6 ×10-8 M, [CH3NH3+] = 5.5 ×10-4 M, and [CH3NH2] = 0.130 M?

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The Kb for methylamine, CH3NH2, at 25°C is 4.4 x 10-4

a. Write the chemical equation for the equilibrium that corresponds to K b.


b. By using the value of Kb, calculate ΔG° for the equilibrium in part a.




c. What is the value of ΔG at equilibrium?


d. What is the value of ΔG when [H +] = 1.6 ×10-8 M, [CH3NH3+] = 5.5 ×10-4 M, and 

[CH3NH2] = 0.130 M?

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