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

Which reactions can occur during further oxidation, a) Write down the balan...

a) Write down the balanced reaction equation of the key reaction path.  b) Which reactions can occur during further oxidation (except total oxidation) ?   The us

Atmospheric pressure, An open test tube at 293 K is filled at the bottom wi...

An open test tube at 293 K is filled at the bottom with 24.2 cm of Hg, and 11.2 cm of water is placed above the Hg.  Calculate the pressure at the bottom of the test tube if the at

Why acetic has less conductivity than hcl, Acetic acid has less conductivit...

Acetic acid has less conductivity, due to it ionizes less in solution. HCl divides almost completely in solution to form the ions Cl- and H+..

Why conduction band overlaps with valence band in mg, Because Mg is metal. ...

Because Mg is metal. We know from the properties of the metal it will mallable, ductile, and good conductor for electricity. So, for better conduction the conduction band must over

IInorganic chemistry, Why magnesium does not impart any colour to Bunsen fl...

Why magnesium does not impart any colour to Bunsen flame while calcium does

The difference in the value of electron egativities, For the formation of c...

For the formation of covalent bond, the difference in the value of electron egativities should be: (1) Equal to or less than 1.7         (2) More than 1.7  (3) 1.7 or mor

.ethanol, general methods of preparation of ethanol

general methods of preparation of ethanol

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