Which acid is likely to result in the greatest percent ionization in aqueous sol

Question

Which acid is likely to result in the greatest percent ionization in aqueous solution? I M HC_2H_2BrO_2; K_a = 1.3 times10^minus 3 1 M HCHO_2; K_a = 1.8 times10^minus 4 I M H_2S; K_a1 = 8.9 times10^minus 8; K_a2 = 1.0 times10^minus 19 1 M HIO; K_a = 3.2 times10^minus 11 The pH of a 0.0100 M solution of a weak acid. HA, is 3.76. What is the percent ionization of HA for this solution? 53% 1.7% 0.58% 0317% When equal molar amounts of these sets of compounds arc mixed in aqueous solution, which will form a buffer solution? NaOH with Na_2CO_3 HC1 with NaOH HCI with NaCl NH_3 with NH_4CI Which titration has an equivalence point with a basic pH? titrating HCIO_4(aq) with Ca(OH)_2(aq) titrating HN O_2(aq) with KOH(aq) titrating HN O_3(aq) with KOH(aq) titrating NH_3(aq) w ith HCl(aq) Identify and justify the Bronsted-Lowry acid in the reaction: NH_3 plus HBr rightarrow NH_4Br HBr because it is a proton donor HBr because it is a proton acceptor N H_3 because it is a proton donor N H_3 because it is a proton acceptor Which is the most prevalent species in a 0.25 M aqueous solution of phosphoric acid. H_3PO_4? H_3O^plus HPO_4^2 minus H_2PO_4^minus H_3PO_4

Explanation / Answer

1.

greatest % ionization is given when there is a high value of Ka

this is due to the fact that Ka = [H+][A-]/[HA]

since Ka is high, then H+ is high

% ion = [H+]/M * 100% by definition

so

higher Ka, higher H+

choose A

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