The substance acetylsalicylic acid $($aspirin$)(H{C}_9{H}_7{O}_4)$ is a weak acid $(K_a=(3\mathrm{.}0{10}^{-4})).$

What is the $pH$ of a $0\mathrm{.}165M$ aqueous solution of sodium acetylsalicylate, $Na{C}_9{H}_7{O}_4?$

$pH=$

This solution is $.$