Deprotonation equilibria, Chemistry

 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.

Posted Date: 3/1/2013 6:07:51 AM | Location : United States







Related Discussions:- Deprotonation equilibria, Assignment Help, Ask Question on Deprotonation equilibria, Get Answer, Expert's Help, Deprotonation equilibria Discussions

Write discussion on Deprotonation equilibria
Your posts are moderated
Related Questions
The charge of an electron is -1.6 x10 -19 C.  The value of free charge on  Li + ion will be: (1) 3.6x 10 -19 c                   (2) 1x 10 -19 c      (3) 1.6 x 10 -19

How many unpaired electrons are present in cobalt [Co] metal: (1) 2        (2) 3        (3) 4        (4) 7 Ans: 3

how alkenes oxidise with potassium

what are the signs associated with electron affinity?

Q. Show  the Hydrides of Boron and Aluminium? Boron forms a series of volatile hydrides which resemble in some respects, e.g., volatility and covalent nature, the hydrides of c

The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV           (2)-6.8 eV      (3) -1.7 eV


Can you give me an activity about hybridization? I badly need some help

Are there any other palatable inorganic acids other than phosphoric acid? I need it because I on a research for finding food replacing plants ---- us becoming autotrophs. I am on t