It is titrated with 0.1 M HCl 25 mL of a solution which contains a mixture...
It is titrated with 0.1 M HCl 25 mL of a solution which contains
a mixture of salts: NaHA and Na2A. Two points are known from the
valuation curve:
1) when adding 1.25 mL of HCl the pH is 6.0 and 2) Add 12.5 mL of
HCl the pH is 4.5. Calculate the volume of the 0.1 M HCl solution
necessary for the complete evaluation of both salts
H2A (pKa1 = 3.0, pKa2 = 6.0).
ANSWER 35 mL
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It is titrated with 0.1 M HCl 25 mL of a solution which contains
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