perchloric acid&glacal acetic acid both are acids but
reaction is complete in volumetric titrations.how?



perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrat..

Answer / kiranreddy munnangi

Perchloric acid is Very strong acid
Acetic acid is weak acid
In presence of very strong acid like pechloric acid
acetic acid bahaves as a base and accepts a proton(H+) from
perchloric acid and forms CH3COOH<2+
Non aqaous titrations are used to titrate the samples
which are very weak bases or salts of weak bases.So in our
titration we take a weak base sample in a titration vessel.

By taking protons from perchloric acid, acetic acid behaves
like a strong acid in presence of a weak base. So reaction
occurs between strong acid and a weak base.
Role of acetic acid:
1.In presence of strong perchloric acid it behaves like a
base and accepts protons.
2.In presence of weak base it behaves as a strong acid and
donates protons to weak base.Protons transfer from
perchloric acid to weak base through acetic acid.

Perchloric acid-------->acetic acid--------->weak base
Finally it is strong acid weak base titration but not acid
acid titration.

Is This Answer Correct ?    19 Yes 1 No

Post New Answer

More Analytical Chemistry Interview Questions

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was failed. then how can i justify that the samples analyzed on the system during this 6 months was wright? how can i forward in to the next step for those batches?

5 Answers  


what is the concept for adjustment of pH in HPLC buffer solution ? a. Common ion effect b. Counter ion effect and explain me, how we adapt this principles & what is the role of these principles in our method

1 Answers   Apex, Pentagon Labs,


What are the terms used during Melting Range Analysis ?

2 Answers  


which chromatographic technique is used for softening hard water?

1 Answers   Laurus,


Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

0 Answers   Apex, BNM, Ranbaxy,






why in uv we take k value less than 1

2 Answers  


what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

0 Answers  


What is descriminatory disolution medium ?

3 Answers   Cipla, Graviti Pharmaceuticals,


What is difference between silica used in TLC and HPLC column

4 Answers   Cipla, Meghmani Organics,


What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

0 Answers  


signifcance of detector lenearity in calibration f hplc

3 Answers  


In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?

1 Answers  


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)