would the pH of a 010 M formic acid HCOOH solution be higher

would the pH of a 0.10 M formic acid (HCOOH) solution be higher or lower than the pH of a solution containing 0.10 M formic acid and 0.10 M sodium formate ( HCIINa) explain?

Solution

it will be higher asHCOONa will act as a buffer and henceit will hinder the dissociation offormic acid making it less acidic
and hence pH will decrease