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

Ion, How ion works?

How ion works?

EDTA titration, What is the principle of EDTA titration method

What is the principle of EDTA titration method

Explain generation of the electrophile, Generation of the electrophile : Th...

Generation of the electrophile : The electrophile is the carbocation produced by protonation of the alcohol  oxygen and loss of water.

Chemical properties of cycloalkanes, Chemical properties of Cycloalkanes ...

Chemical properties of Cycloalkanes Cycloalkanes behave both such as alkenes and alkanes in their chemical properties. All cycloalkanes go through substitution reaction with ha

Extraction of aluminium, Q. Extraction of Aluminium? Aluminium cannot b...

Q. Extraction of Aluminium? Aluminium cannot be extirpated economically from the silicate minerals. Therefore bauxite is the most important ore for the extraction of alumimum,

Reaction, Difference between liebermann reaction and liebarmann nitroso rea...

Difference between liebermann reaction and liebarmann nitroso reaction

Dipole moment - applications of hyperconjugation, Dipole Moment - Applicati...

Dipole Moment - Applications of Hyperconjugation As hyperconjugation affects the development of charges, it as well affects the dipole moment in the molecule. The increase in d

Acetylene tetrachloride (westron), Acetylene tetrachloride (Westron), CHCl ...

Acetylene tetrachloride (Westron), CHCl 2 ·CHCl 2 It is as well called as sym. tetrachloroethane. It is made by the action of chlorine on acetylene in existence of a catalyst

Ion exchange property of soils, Ion Exchange Property of Soils Ion exch...

Ion Exchange Property of Soils Ion exchange is a reversible process. Soil has capacity to exchange its ions due to its colloidal property. The water existing in the immediate v

Explain the geometry of ccl4, Explain the geometry of CCl4 We first hav...

Explain the geometry of CCl4 We first have to know the geometry of CCl4. This should be easy: it's tetrahedral, because the carbon is bonded to four identical groups. Now, as s

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