How do I find pH?

Question

Hey!

We dissolve 102,69g of HClO₂ in water. The volume of the solution will be 0,300 L. What is the pH of the solution (Ka = 0,0100)? I got 0,22.

Is it correct? if not, how do i solve this and what is the answer?

Thanks for helping me out :)

Answer 1

It looks like you might have found the hydrogen ion concentration based on those numbers and what I wrote down, make sure once you get the [H+] you do the -log to calculate the pH.