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

Ayclalkanes.., perkin ring closure reaction of melonic ester with C2H5O-Na+...

perkin ring closure reaction of melonic ester with C2H5O-Na+

Nucleophilic addition reactions, Nucleophilic addition reactions: While...

Nucleophilic addition reactions: While the addition reaction takes place on account of the initial attack of nucleophile, the reaction is known as a nucleophilic addition react

Reactions of benzene nucleus - nitration, Reactions of Benzene Nucleus - Ni...

Reactions of Benzene Nucleus - Nitration Phenol reacts along with dilute nitric acid at 5-10°C to form ortho and para nitro phenols, although the yield is meager because of oxi

The four quantum numbers of the outermost orbital, The four quantum numbers...

The four quantum numbers of the outermost orbital of K (atomic no. =19) are: (1)  n= 2, l= 0, m=0, s= +1/2           (2) n= 4, l= 0, m=0, s= +1/2          (3) n= 3, l= 1,

Explain product specification of mustard, Mustard Although the primary...

Mustard Although the primary use of mustard seeds is a condiments, important new food applications are regularly being found. Commercially available mustard products include m

Classification of dyes - ingrain dyes (developed dyes), Ingrain dyes (devel...

Ingrain dyes (developed dyes) - Ingrain dyes are those that are synthesised straight on the fabric. Instances of this type of dyes are azo dyes. In this the fabric is wrapped up

diagonal relationship, Difference between diagonal relationship between Be...

Difference between diagonal relationship between Be and Al

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