0.9600 M NaOH solution was diluted with a factor of 4. Then the diluted solution of NaOH was titrated against an unknown acid. The volumes of NaOH(aq) titrated are shown in the table below. Volumes of NaOH(aq): Rough titration First titration Second titration Third titration Third titration Final burette reading: (mL) 19.00 34.05 20.86 36.01 23.57 Initial burette reading: (mL) 19.00 19.07 5.76 21.02 8.54 The molarity of the unknown acid is 0.08108 M and the volume of the unknown acid used in each titration is 14.80 mL. (i) Was the unknown acid monoprotic, diprotic or triprotic? Show your calculations and reasoning. (ii) What type of chemical reaction is this? _________________ or _______________
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A 0.9600 M NaOH solution was diluted with a factor of 4.
Then the diluted solution of NaOH was titrated against an unknown acid.
The volumes of NaOH(aq) titrated are shown in the table below.
Volumes of NaOH(aq):
Rough
titration
First
titration
Second
titration
Third
titration
Third
titration
Final burette reading:
(mL)
19.00 34.05 20.86 36.01 23.57
Initial burette reading:
(mL)
19.00 19.07 5.76 21.02 8.54
The molarity of the unknown acid is 0.08108 M and the volume of the unknown acid used in
each titration is 14.80 mL.
(i) Was the unknown acid monoprotic, diprotic or triprotic? Show your calculations and
reasoning.
(ii) What type of
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