# Answer to Question #199079 in General Chemistry for Leann Torrisi

Question #199079

What is the [H3O+] in a 0.63 M acetic (HC2H3O2) solution that is 5.8% ionized?

1
2021-05-27T07:35:06-0400

Strong electrolytes dissociate completely in the aqueous medium and have a high dissociation constant while the weak electrolytes dissolve partially in the aqueous medium and have a low ionization constant.

From the ionization constant and the degree of the ionization constant, we can calculate the value of the concentration of hydrogen ions and hydroxide ions in the solution.

Acetic acid is dissociated as

CH3COOH"\\implies" CH3COO- + H+

"C(1-\\alpha)" "C\\alpha" "C\\alpha"

Ka"=\\frac{C(1-\\alpha)}{C\\alpha.C\\alpha}"

Ka"=\\frac{1-\\alpha}{C\\alpha^2}"

Given "\\alpha=0.058"

C="0.63M"

Therefore,

[H+]=[H3O+]="C\\alpha" ="0.63\u00d70.058"

="0.036M"

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!