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23 Nov 2019
A 0.1236-g sample of an unknown monoprotic acid was dissolved in25.8 mL of water and titrated with 0.0680 M NaOH solution. Thevolume of base required to bring the solution to the equivalencepoint was 19.1 mL.
(a) Calculate the molar mass of the acid.
___________g/mol
(b) After 11.7 mL of base had been added during the titration, thepH was determined to be 5.17. What is the Ka of the unknownacid?
___________
A 0.1236-g sample of an unknown monoprotic acid was dissolved in25.8 mL of water and titrated with 0.0680 M NaOH solution. Thevolume of base required to bring the solution to the equivalencepoint was 19.1 mL.
(a) Calculate the molar mass of the acid.
___________g/mol
(b) After 11.7 mL of base had been added during the titration, thepH was determined to be 5.17. What is the Ka of the unknownacid?
___________
Lelia LubowitzLv2
23 May 2019
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