1. Manganese(II) (Mn2+) forms a complex with EDTA according to Mn2+ + Y4- <-> MnY2- with...

1. Manganese(II) (Mn²⁺) forms a complex with EDTA according to Mn²⁺ + Y^4- <-> MnY^2- with a formation constant K_f = 7.8 x 10¹³.

(a) 23.14 mL of 0.07893 M Mn²⁺ was titrated with 0.08130 M EDTA at pH 10.00. Calculate the endpoint volume for the titration.

(b) Calculate the conditional formation constant (K_f’) for Mn²⁺ at pH 10.00 where a_Y4- = 0.30.

(c) Calculate the concentration of free Mn²⁺ in solution at the endpoint of the titration at pH 10.00.

(d) Calculate the concentration of free Mn²⁺ in solution following the addition of 15.00 mL of 0.08130 M EDTA at pH 10.00.

(e) Calculate the concentration of free Mn²⁺ in solution following the addition of 25.00 mL of 0.08130 M EDTA at pH 10.00.

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queen_honey_blossom answered 1 year ago

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