Deprotonation equilibria, Chemistry

Assignment Help:

 2. Oxalic acid is a diprotic acid with the following deprotonation equilibria.

1677_Create a simple static web page1.png

1378_Create a simple static web page2.png

A. You have 150 ml of a solution of pure oxalic acid with an unknown concentration.  You add known amounts of solid NaOH and measure the pH of the solution, with the results shown in the table.  Plot these values as a titration curve.  You can provide this either as a manual graph on graph paper or by using a graphing program.   Graphs done manually on regular lined paper will not be accepted.  On your graph indicate the position of where the concentration of [-OOC-COOH] = [-OOC-COO-]

B. Based on the results of the titration, what is the starting concentration of oxalic acid?  Show your work.

C. What is the net average charge/molecule at pH 4.75?  Show your work.


Related Discussions:- Deprotonation equilibria

Visible range of hydrogen spectrum will contain, Visible range of hydrogen ...

Visible range of hydrogen spectrum will contain the following series: (1)  Pfund (2) Lyman (3) Balmer (4) Brackett Ans: Balmer

Rna nucleotides - biomolecules, RNA nucleotides Base ...

RNA nucleotides Base + Ribose → (Nucleoside) + Phosphoric acid → Nucleotide

How will u synthesize the 1, Ethelene+diaminotetraacetate---->1,4- diaminob...

Ethelene+diaminotetraacetate---->1,4- diaminobutane from ethylene CH 2 =CH 2 +EDTA---->NH 2 -CH 2 -CH 2 -CH 2 -CH 2 -NH 2

Explain the systems at high pressure - phase diagram, Explain the Systems a...

Explain the Systems at high pressure - Phase Diagram? Binary phase diagrams begin to look different when the pressure is greater than the critical pressure of either of the pur

Classic flame photometric experiment, Classic flame photometric experiment:...

Classic flame photometric experiment: In a classic flame photometric experiment, a solution of the analyte is aspirated within the burner and dispersed into the flame as a fin

Titrimetric analysis, calculate the concentration of the Naoh solution you ...

calculate the concentration of the Naoh solution you have prepared on the basis of the measured mass of the pellets used in the solution volume

Simple and mixed amines - nitrogen containing compounds, Simple and Mixed A...

Simple and Mixed Amines Secondary and tertiary amines may be categorized as simple or mixed amines as per to all the alkyl or aryl groups attached to the nitrogen atom are simi

Polymer - organic chemistry, Polymer Polymers are compound of extremely...

Polymer Polymers are compound of extremely high molecular masses made by the combination of a large number of simple molecules. The simple molecules that combine to offer po

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd