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

Physical properties of dihydrogen, I want information on physical propertie...

I want information on physical properties of dihydrogen

Ans., Give the styx code of B4 H10 and which type of bond present in it?

Give the styx code of B4 H10 and which type of bond present in it?

Which one the following configuration represents noble gas, Which one of th...

Which one of the following configuration represents a noble gas: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 ,       (2)1s 2, 2s 2, 2p 6 , 3s 1         (3) 1s 2 , 2s 2 , 2p 6 ,

Lithium and beryllium, lithium and beryllium markedly differ from other mem...

lithium and beryllium markedly differ from other members of their respective groups

Diagram, caustic embrittlement

caustic embrittlement

3d: solid compounds, Table gives some halides and oxides of the 3 d serie...

Table gives some halides and oxides of the 3 d series elements, selected to show the range of stable oxidation states. These follow the similar trends as required in aqueous chem

UV-Vis Spectroscopy of organic compound, Why does lycopene absorb at loner ...

Why does lycopene absorb at loner wavelength than beta carotene though both have same number of double bonds?

Write reactions for chloroform into diethylcarbonate, Write conditions and ...

Write conditions and reactions for the following conversions: (i) Chloroform into diethylcarbonate (ii) Phenol into salicylic acid (iii) 2-propanone into 2-inethyl-2-prop

Organic chemistry, Show by means of equation and reagent butanoic acid is f...

Show by means of equation and reagent butanoic acid is formed from propyne

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