How to Calculate Hydronium Ion Concentration and pH in Acetic Acid Solution

[Fiza43]

a student prepared a 0.10 M solution of acetic acid, CH3COOH. acetic acid has a Ka of 1.75 * 10^-5. what are the hydronium ion concentration and the pH of the solution?

[hydronium ion] =
pH =

 

[chemisttree]

Write out the expression for Ka and substitute what you know into the expression.