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

Decomposition of hydrogen peroxide, how do you convert mL/s to mol/s using ...

how do you convert mL/s to mol/s using the colume of oxygen at satp?

Explain quantum numbers, Quantum numbers explain values of total conserved...

Quantum numbers explain values of total conserved quantities in the dynamics of the quantum system. possibly the most peculiar part of quantum mechanics is the quantization of obs

Chm 221.., what is surface chemistry?

what is surface chemistry?

Local anesthetics - drugs and medicines, Local Anesthetics: These infl...

Local Anesthetics: These influence just only a part of the body insensitive to pain or feeling. Common local Anesthetics are: xylocaine (employed in jelly form), ethyl chlorid

The maximum number of electrons & azimuthal quantum no., For azimuthal quan...

For azimuthal quantum number l= 3  , the maximum number of electrons will be: (1) 2        (2) 6        (3) 0        (4) 14 Ans:  14

Iodoform, what are the pysical propities of iodofrom

what are the pysical propities of iodofrom

Oxidizing and reducing agent, ionic equation for potassium dichromate and p...

ionic equation for potassium dichromate and potassium manganate

Equilibrium constants, For a general reaction such as: The equilib...

For a general reaction such as: The equilibrium constant is   where the terms [A], [B],...strictly represent activities but are frequently approximated as co

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