Given two acids, $HA$ and $HB,$ with $p{K}_{a}s$ of $4$ and $6$ respectively, answer the following.

a$.$ Which has the higher proton affinity?

HA has higher protin aftivity

b$.$ When deprotonated, which has a less stable negative charge?

c$.$ Which will dissociate more when added to water?

d$.$ For each, what is the major $($predominant$)$ protonation state at $pH3,pH4,$ and $pH7?$

e$.$ For each acid, at what $pH$ is the ratio of protonated to deprotonated $3$:$1?$

$2$