A student prepares a aqueous solution of acetic acid . Calculate the fraction of acetic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to significant digits.

The question is incomplete , complete question is ;

A student prepares a 0.30 mM aqueous solution of acetic acid . Calculate the fraction of acetic acid that is in the dissociated form in his solution. Express your answer as a percentage. The

21.43% is the percentage of acetic acid that is in the dissociated form in its solution.

Explanation:

The value of acetic acid = 4.756

The dissociation constant of acetic acid =  

The initial concentration of acetic acid = c = 0.30 mM =

Degree of dissociation of acetic acid =

initially

c       0    0

At equilibrium

(c-cα)      cα   cα

The expression of dissocation constant :

21.43% is the percentage of acetic acid that is in the dissociated form in its solution.