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

Assingment, introduction of chemical bond

introduction of chemical bond

Estimate the enthalpy of fusion of sulphuric acid, In the industrial produc...

In the industrial production of sulphuric acid, SO 3 is carefully reacted with water: SO 3 + H 2 O → H 2 SO 4 any excess SO 3 giving rise to what is called oleum, a solut

Acidity, A sample of water collected in the field had a pH of 6.8. By the ...

A sample of water collected in the field had a pH of 6.8. By the time it was analyzed in the lab, the pH had decreased to 6.0. Give a possible explanation.

Explain the statement water has bent geometry, Explain the statement "Water...

Explain the statement "Water has bent geometry" Water has bent geometry; that is, the H-O-H bond angle is approximately tetrahedral. Repulsion among the lone pairs and the bond

Explain about conservation of mass, Q. Explain about Conservation of Mass? ...

Q. Explain about Conservation of Mass? Conservation of Mass above two centuries ago chemists established a fundamental law called the law of conservation of mass. This l

Organic reactions and their mechanism, what are the types of Organic reacti...

what are the types of Organic reactions and their mechanism

The number of unpaired electrons, The number of unpaired electrons in  1s 2...

The number of unpaired electrons in  1s 2 2s 2 2p 4   is: (1) 4        (2) 2        (3) 0        (4) 1 Ans: 2

Solubility of one liquid in other -liquid liquid equilibria, Explain Solubi...

Explain Solubility of one liquid in another -Liquid–Liquid Equilibria   Suppose substances A and B are both liquids when pure. In discussing the solubility of liquid B in li

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