Question

1. Determine if a solution of disodium citrate, Na2HC6H507 is acidic or basic. The following equations are provided: Note: disodium citrate is totally dissociated in solution according to the equation

H3C6H507 ° H+ + H2C6H507 – Ka1 = 7.10×10–4 H2C6H507-° H+ + HC6H5O7 2– Ka2 = 1.68×10–5 НСGН507 2- ° H+ + C6H507 3-Ка3 = 6.40х10-6 Na2HC6H5O7 ÷ 2Na+ + HC6H5O7 2–

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