0.5 gr of a diprotic acid is dissolved in water and titrated with 10 mL 1 M KOH to phenolphthalein end point. What is the molar mass of the acid? ½ H2A (aq) + KOH (aq) --> ½ K2A (aq) + H2O (l) Molar mass of KOH: 56 gr/mol a. 150 gr/mol b. 200 gr/mol c. 50 gr/mol d. 100 gr/mol
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0.5 gr of a diprotic acid is dissolved in water and titrated with 10 mL 1 M KOH to phenolphthalein end point. What is the molar mass of the acid?
½ H2A (aq) + KOH (aq) --> ½ K2A (aq) + H2O (l)
Molar mass of KOH: 56 gr/mol
150 gr/mol
200 gr/mol
50 gr/mol
100 gr/mol
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