Acetic acid (Ka = 1.75 x 10-5 ) and formic acid (Ka = 1.80 x 10-4 ) are both present at equimolar concentrations in 50.0 mL of water (i.e. [acetic acid/[formic acid] = 1.00). If the pH of the solution is 4.5, a. find the distribution ratio of each acid and b. determine what will the concentration ratio, [acetic acid/[formic acid], be after two extractions with 25.0 mL each of chloroform? Hint: Since two solutes are present, each will have their own q expression. KD value for acetic acid = 5.5; KD value for formic acid = 4.
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Answer properly and must do both sub parts a and b
Acetic acid (Ka = 1.75 x 10-5 ) and formic acid (Ka = 1.80 x 10-4 ) are both present at equimolar concentrations in 50.0 mL of water (i.e. [acetic acid/[formic acid] = 1.00). If the pH of the solution is 4.5,
a. find the distribution ratio of each acid and
b. determine what will the concentration ratio, [acetic acid/[formic acid], be after two extractions with 25.0 mL each of chloroform? Hint: Since two solutes are present, each will have their own q expression.
KD value for acetic acid = 5.5; KD value for formic acid = 4.
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