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

Moles, when 100ml of M/10 H2S04 is mixed with 500ml of M/10 NaOH then natur...

when 100ml of M/10 H2S04 is mixed with 500ml of M/10 NaOH then nature of resulting solution and normality of excess of reactant left isum 100 words accepted#

Explain laws of electrolysis, Q. Explain laws of Electrolysis? Ans . ...

Q. Explain laws of Electrolysis? Ans . A  spontaneous reaction  takes place by itself. Some redox reactions are not spontaneous. In a  no n-spontaneous redox reaction ,

Calculate ratio of air to methanol , A mixture of air and methanol vapour i...

A mixture of air and methanol vapour is fed to a converter in which the following reactions take place: CH OH O HCHO H O 3 2 2 2 1 + ® + 3 2 CH OH ® HCHO + H In addit

Test of proteins - biuret test, Test of proteins - Biuret test (i) Biur...

Test of proteins - Biuret test (i) Biuret test : By adding a dilute solution of copper sulphate to alkaline solution of protein, a violet colour is made. This test is because o

Density theory, The assignment is basically concerned with the writing of a...

The assignment is basically concerned with the writing of a number of functions which can implement the density theory described above. These functions will then be called by a pro

Urea preparation, how to prepare 100ml of 40% urea solution

how to prepare 100ml of 40% urea solution

Equilibrium : N2 + 3H2 ----> 2NH3 , How does an equilibrium is disturbed by...

How does an equilibrium is disturbed by adding 1 mole of H2 in the following reaction: N 2 + 3H 2 ----> 2NH 3 Ans) The equilibrium will not be affected according to Le Chatel

Principle of atomic fluorescence spectrometry, Principle of atomic fluoresc...

Principle of atomic fluorescence spectrometry: In AFS, the analyte is converted within gaseous atoms in the ground state using a appropriate atomization technique. These are t

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