Question

The following questions refer to the following system: 500 mL of 0.02 M Mn(NO3)2 are mixed with 1.0 L of 1.0 M Na2C2O4. The oxalate ion, C2O4, acts as a ligand to form a complex ion with the Mn+2 ion with a coordination number of two.
Mn2+ + C2O42- goes to MnC2O4 K1 = 7.9 x 10^3
[Mn(C2O4)2]2- goes to MnC2O4 + C2O42- K2 = 1.26 x 10^-2
1)Find the equilibrium concentration of the Mn(C2O4) ion.
2)Find the equilibrium concentration of the [Mn(C2O4)2]2- ion.

I have a test tomorrow and I have no idea how to do this! Please help!!! It would be awesome if you could show it step by step with explanations. Thanks in advance.

Answer 1

I have no idea

Answer 2

I'm also looking for this answer for a test in 2 hours so if someone could supply an answer now that would be fantastic, thanks!