REPORT SHEET EXPERIMENT Titration Curves of 26 Polyprotic Acids B. Standardizati

Question

REPORT SHEET EXPERIMENT Titration Curves of 26 Polyprotic Acids B. Standardization of Sodium Hydroxide (NaoH) Solution Mass of bottle KHP Mass of bottle Mass of KHP used Initial buret reading mL of NaOH used Molarity of NaOH Average molarity (show calculations) calculations) Standard deviation (show C. Determination of the Acid Dissociation Constants and the Molarity of the Unknown Acid Volume of unknown acid Molarity of NaOH from above mL of NaOH at eq. point mL of NaOH at eq. point 2 Molarity of unknown acid Copyright o 2012 Pearson Education, Inc.

Explanation / Answer

Solution:

The pH computation yields the titration curve in an smooth linear curve resembling the increase of concentration / protonation ions. As per the range from from 4 to 9 of pH yields four midpoint rises with four equivalence point titration.

Note: The pH range can never cross 14 and normally been 1 to 14, need values of burette (final reading) mass of KHP and other experimental datas in first picture which are crucial for calculating last picture values (pKa) whence kindly update readings.

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