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

Correct order of increasing energy of atomic orbitals, The correct order of...

The correct order of increasing energy of atomic orbitals is: (1) 5p (2) 5p (3) 4f (4) 5p Ans: 5p

The highest boiling point, In the following which substance will have highe...

In the following which substance will have highest boiling point: (1) He                     (2) CsF   (3) NH 3                (4) CHCl 3 Ans: CsF

No. of kmno4 required to oxidise 1 mole of fe(c2o2), No. of KMnO4 required ...

No. of KMnO4 required to oxidise 1 mole of Fe(C2O2) in acidic medium? Solution) 1 mole of KMnO4 is required for oxidation of 1 mole of Fe(C2O2). 2KMno4+2Fe(C2O2)+6H2SO4 = K2S

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

Determination of molecular mass - victor meyer method , Determination of Mo...

Determination of Molecular Mass - Victor Meyer method Molecular mass of volatile liquids and solids that can be easily ascertained from the application of Avogadro hypothesis a

Inorganic chemistry, what are binary compounds of hydrogen?describe briefly...

what are binary compounds of hydrogen?describe briefly hydrides formed by alkali metals and halogen?

Explain molarity and replacement reactions, Q. Explain Molarity and Replace...

Q. Explain Molarity and Replacement Reactions? Ans. Frequently in the chemistry lab we are confronted with situations where we are interested in the yield of a certain rea

Benzene is a very symmetrical compound, Benzene is a very symmetrical compo...

Benzene is a very symmetrical compound Benzene is a very symmetrical compound. The carbon framework is essentially a planar hexagon. Because of its resonance structures, all car

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