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

Determine uncertainty in momentum of an electron, The uncertainty in moment...

The uncertainty in momentum of an electron is 1 x 10 -5 kgm/ s  . The uncertainity in its position will be( h= 6.63 x 10 -34 Js) : (1)  5.28 x 10 -30 m

Uses of resorcinol, Uses of Resorcinol (a) Resorcinol is used as antise...

Uses of Resorcinol (a) Resorcinol is used as antiseptic and for creating dyes. (b) Resorcinol is also used in the medicine of eczema. 2, 4, 6-trinitroresorcinol is required

Calculate the specific heat of strange metal, Q. Calculate the specific hea...

Q. Calculate the specific heat of strange metal? Ans. You found a 50.0 sample of an unknown metal while you were scuba diving near the remains of anancient ship wreck. To test

Quantum mechanical model of the atom, Q. Quantum Mechanical Model of the At...

Q. Quantum Mechanical Model of the Atom? Ans: Using quantum mechanics, scientists realized that the exact location of an electron could not be determined. Instead, only the p

One of the following compound is ionic, Which one of the following compound...

Which one of the following compound is ionic: (1) KCl                             (2) CH 4               (3) Diamond              (4) H 2 Ans: KCl

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

Crystal field splitting in tetrahedral field, Q. Crystal Field Splitting in...

Q. Crystal Field Splitting in Tetrahedral Field? A tetrahedron can be viewed as a part of cube where the metal ion occupies the centre of the cube and the four ligands are plac

Fiehes test, sir plz tell me about fiehes test procedure for honey in detai...

sir plz tell me about fiehes test procedure for honey in detail...

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