114. What is true about a Bronsted/Lowry acid and a Bronsted/Lowry base? a) the

Question

114. What is true about a Bronsted/Lowry acid and a Bronsted/Lowry base?

a) the acid donates protons and the base accepts protons

b) the acid accepts electrons and the base donates electrons

c) the acid produces H3O+ in solution and the base produces OH- in solution.

115-120. A solution containing 20.0 mL of 1 x 10-3M Co2+ in the presence of complexing agent (0.10M C2O42-) at pH 9.00 was titrated with 1 x 10-2 M EDTA. The Co/C2O42- complexes include Co(C2O4) and Co(C2O4)22-. Calculate pCo for 2.00 3.00 mL of EDTA. You will need to look up Kf, y4-, and 1 and 2 values for the formation of the Co(C2O4) and Co(C2O4)22- complexes to calculate Co2+ (Appendix I).

First write equations and calculate all necessary constants. There are 2 of them. One of them you just need to look up.

Then write the pertinent reaction.

Write and solve an equation for CCo.

Write and solve an equation for [Co].

Write and solve an equation for pCo.

Explanation / Answer

14)

Bronsted/Lowry acid is the acid which donates protons, and the Bronsted/Lowry base is the base which accepts protons.

Option A is correct.

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