Define about the term indicators, Biology

Assignment Help:

Define about the term Indicators?

The easiest way to determine when the reaction is complete is by using indicators. An indicator is a compound that has a physical property (usually colour) that changes abruptly at equivalence point. Some examples of indicators used for quantitative analysis include eriochrome black T in calcium estimation, methylene blue in sugar estimation, 2,6 Dichlorophenolindophenol in ascorbic acid estimation etc. The usefulness of an indicator lies in the fact that one (or both) of the form of the indicator are intensely coloured.

The appearance, disappearance, or change of indicator colour in a solution during a titration near the equivalence point makes it a useful part of the titration. This change is either because of the sudden disappearance of analyte or appearance of titrant at the equivalence point. What is the equivalence point. Go ahead read on you will soon find out the meaning of this term and other such terms used in the study of volumetric analysis. But first get to know the types of indicators which can be used.


Related Discussions:- Define about the term indicators

State about maxillary sinus, Maxillary sinus : It is a pyramidal shaped...

Maxillary sinus : It is a pyramidal shaped large cavity in the body of the maxilla containing many structures of concern during surgery. The sinus is lined by a membrane known

In which part of the digestive tube is water is absorbed, Q. In which part ...

Q. In which part of the digestive tube is water is chiefly absorbed? What about the mineral ions and vitamins? Most part of water, mineral and vitamins ions are absorbed by the

Why is carbon monoxide toxic for humans, Why is carbon monoxide toxic for h...

Why is carbon monoxide toxic for humans? Hemoglobin "likes" carbon monoxide (CO) much more than it likes oxygen. When there is carbon monoxide in the inhaled air it binds to he

Where are the adrenal glands located, Q. Where are the adrenal glands locat...

Q. Where are the adrenal glands located? How many are they and what are their portions? Each adrenal gland is located on the top of each kidney (forming a hat-like structure fo

Off pump coronary artery bypass surgery opcab, Application :  Off Pump...

Application :  Off Pump Coronary Artery Bypass Surgery (OPCAB) CABG is done on epicai-dial vessels. Cardio pulmonary by pass is used only to get a still h

Determine st-segment elevation, Q. Determine ST-Segment Elevation? Ans...

Q. Determine ST-Segment Elevation? Ans. Exercise induced ST-segment elevation is common in subjects with post MI stress tests in leads where Q-waves are present. It has be

Classification, claasification of phylum porifera

claasification of phylum porifera

Pulmonary autograft and ross procedure, Pulmonary Autograft and Ross Proced...

Pulmonary Autograft and Ross Procedure :  Sir Donald Ross in 1967 introduced the concept of using patient's own pulmonary valve (autograft) for aortic valve replacement and a pul

Adverse effects of air pollution, Air pollution affects both living and non...

Air pollution affects both living and non-living matter. The effects can be classified as.

Endocrine regulation of the cycle - reproduction, Endocrine Regulation of t...

Endocrine Regulation of the Cycle - Reproduction You have learnt above that the reproductive cycles are governed by the interplay of pituitary and gonadal hormones. According

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