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

Directive effect in mono substituted benzene derivatives, Directive effect ...

Directive effect in mono substituted benzene derivatives: The substituent previously present on the benzene ring directs the incoming substituent to inhabit ortho (2 or 6), met

Calculate q value of the reaction, Problem: Let us calculate Q value o...

Problem: Let us calculate Q value of the reaction 27 Al (d, α) 25 Mg Answer: Given that masses of 27 Al = 26.981541        2 H        = 2.014102 4 He = 4.

Electrogravimetry, what is meant by 100% current efficiency in electrogravi...

what is meant by 100% current efficiency in electrogravimetry

Chemistry in daily life - medicine, various types of medicines use in daily...

various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.

Making Copper Sulphate Crystals, I would like to know why you stop heating ...

I would like to know why you stop heating the sulphuric acid before placing in the copper oxide in making copper sulphate crystals

Molecar symetry, Explain significance of orthogonality rule

Explain significance of orthogonality rule

The electronic configuration of an element with atomic no., The electronic ...

The electronic configuration of an element with atomic number 7  i.e. nitrogen atom is; (1) 1s 2 , 2s 1 , 2p 3 x                               (2)  1s 2 , 2s 2 , 2p 2 x ,

Iupac system of naming organic compounds, IUPAC System of Naming Organic Co...

IUPAC System of Naming Organic Compounds In the IUPAC (International Union of Pure and Applied Chemistry) system, the name of an organic compound contain three parts that are:

Help, what is the trend for ionization energy and metals in the periodic ta...

what is the trend for ionization energy and metals in the periodic table

Steric effect, steric effect affecting the end product of organic compound

steric effect affecting the end product of organic compound

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