Question

A solution that is 0.17m in HCHO2 and 0.11 Min in NaCHO2

Answer 1

Hello!

(Missing Previous Enunciate) Use the Henderson-Hasselbalch equation to find the pH of:

To solve this question we need the pKa of HCOOH, which is 3,75, now, we can apply the Henderson-Hasselbach equation:


`pH=pKa+ log( ([HCOONa])/([HCOOH]) )=3,75 + log( (0,11M)/(0,17M) )=3,56`

So, the pH of a solution that is 0,17 M in HCHO₂ and 0,11 M in NaCHO₂ is 3,56

Have a nice day!