Solving a chemistry problem

Solving a chemistry problem

10. A solution of the paramagnetic salt Ni(NO3)2 (T=0.003314) was used as a titrant in the magnetic relaxation titration of 25.00 ml of a solution of the diamagnetic salt K4Fe(CN)6. Based on the titration results, determine what mass (g) of K4Fe(CN)6 is contained in 200.0 ppm solutions 1,2,3:
V Ni(NO3)2, ml 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00
A, conditional units for solution 1 19.0 19.0 19.0 19.0 19.022.0 37.0 52.0 67.0

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