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

Ethanol or ethyl alcohol, Ethanol or Ethyl alcohol This is obtained by ...

Ethanol or Ethyl alcohol This is obtained by the fermentation of Molasses in the presence of enzymes as catalyst. C12H22O11+H2O→C6H12O6 + C6H12O6        (sugar)

Gibbs free energy and spontaneity, Q. Describe Gibbs Free Energy and Sponta...

Q. Describe Gibbs Free Energy and Spontaneity? Ans. This is the end of the quest to find spontaneity.  Free Energy, or Gibbs Free Energy is a quantity which balances the r

Chemical properties of aromatic nitro compounds, Chemical Properties of Aro...

Chemical Properties of Aromatic Nitro Compounds Resonance in nitrobenzene pass on a partial double bond character to the bond among carbon of benzene nucleus and nitrogen of th

Crystalline solids, CRYSTALLINE SOLIDS Solids may be loosely categorize...

CRYSTALLINE SOLIDS Solids may be loosely categorized into two groups. Amorphous solid has no long-range order in their molecular or atomic structure. By their nature Amorphous

Double titration, how to determine the strength ofpotassium dichromate with...

how to determine the strength ofpotassium dichromate withFAS and N-phenyl anthranilic acid as an internal indicator

Which oxidation product is released from the cycle, What is the name of thi...

What is the name of this reaction cycle?  Which oxidation product is released from the cycle? What are the decreased products?   The reduced products A and B are reoxidiz

Sum of its enthalpy, What is basically Gibb''s free energy change? Ans) Th...

What is basically Gibb''s free energy change? Ans) The energy associated with a chemical reaction that can be used to do work.  The free energy of a system is the sum of its entha

Percentage of hydrozen for conjugate acid and conjugate base, Formic acid i...

Formic acid is a weak acid along with a pKa of 3.75. The name comes by the Latin term "formica" ("ant") since this is very plentiful into the secretions of several species of ants,

Develop a table for the water quality parameters, Develop a table for the w...

Develop a table for the water quality parameters of surface water (rivers and lakes), and groundwater. A sample table is given below: Water quality parameters of different

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