Calculate the pH of 0.0115M acetic acid solution at 25 degrees celcius with Ka=1.75*10^-5

Answer 1

Note the correct spelling of celsius.
CH3COOH lets call HAc.
.............HAc ==> H^+ + Ac^-
initial....0.0115.....0......0
change.......-x.......x......x
equil.....0.0115-x....x......x

Ka = (H^+)(Ac^-)/(HAc)
Substitute and solve for x then convert to pH.

Answer 2

Thanx a lot GOD BLESS YOU