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

Application of Electrogravimetry, How to determine the mass of substance el...

How to determine the mass of substance electrogravimetricaly?

What is meant by linear combination of atomic orbitals, What is meant by li...

What is meant by linear combination of atomic orbitals? State bonding and antibonding molecular orbitals based on bomo-nuclear dihydrogen molecule.

Helium balloon at a pressure, A 10L helium balloon at a pressure of two bar...

A 10L helium balloon at a pressure of two bar at 27C. Some O 2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the p

Numericals, I want questions for numericals on lime soda process

I want questions for numericals on lime soda process

Phase equilibria, Melting and freezing points: When a pure solid substa...

Melting and freezing points: When a pure solid substance is heated through its melting point (melting temperature), the solid changes to a liquid. At the melting point equilibr

The quantum numbers for the outermost electron of an element, The quantum n...

The quantum numbers for the outermost electron of an element are given below as n= 1, l=0, m=0, s = 1/2  . The atoms is: (1) Lithium (2) Beryllium (3) Hydrogen     (4)

Equivalent mass by hydrogen displacemnt, 0.205g of a metal on treatment wit...

0.205g of a metal on treatment with dilute acid gave 106.6ml of hydrogen collected over water at 755mm pressure and 17 degree Celsius. calculate the equivalent mass of the metal. (

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