What is analytical chemistry
Analytical chemistryis such a branch of chemistry which covers the field of separation,identification and quantification of various substances.Analytical chemistry is subbranch of chemistry which generally have all commonly used techniques mostly in all branches of chemistry such as chemical characterization of one or more than one compound in a mixture.
How will you define analytical chemistry?
Definition 1: Analytical chemistry can be defined as follows: Analytical chemistry is the that branch of chemistry which deals with the separation , instrumentation and analysis of different substances. Definition 2
Analytical chemistry can also be defined as follows: The branch of chemistry which concerns with the analysis of various chemical compounds or substances through chemical analysis.
Definition 3 Analytical chemistry in more meaningful and brief way can be defined as follows: Analytical chemistry is that branch of chemistry in which obtaining of sample,processing it through various steps,communicating it with various techniques in which we see different structures and different compositions as a result of these techniques.
Which chemical methods of analysis are generally in analytical chemistry?
Generally there are two types of chemical analysis are used foe analyzing in the field of analytical chemistry which are briefly discussed as below:
Quantitative analysis Qualitative analysis Quantitative analysis
Definition of Quantitative analysis:
Quantitative analysis can be defined as follows: The type of analysis in which a substance as a whole is kept foe analysis in numbers. Word “How much” is the most representative word for quantitative analysis.
Types of Quantitative Analysis:
There are following types of quantitative analysis:
Gravimetric analysis
Instrumental analysis
Volumetric analysis
Gravimetric method:
Defination of Gravimetric analysis:
Gravimetric analysis can be defined as follows
“The type of analysis which is used for the exact measurement of analyte as a solid sample which may be present in a solid sample”.
Example of gravimetric analysis:
Gravimetric analysis is commonly used for the analysis of two or more than two analytes present in an examining solution such as many types of suspended particles in heavy water.When filtration of heavy water is done than the remaining particles are weighed out. What are different types of gravimetric analysis? Basically there are following four main types of gravimetric analysis which are given below: Volatilization gravimetric analysis Precipitation gravimetric analysis Electrogravimetric analysis Thermogravimetric analysis
How analysis is useful for a scientist now a days?
Gravimetric analysis has the following advantages :
precise and accurate:
Ancient method:
less chance of errors:
Inexpensive method:
Instrumental analysis:
Instrumental analysis can be defined as follows:
Defination of instrumental analysis: “A such kind of analysis in which instruments based analysis techniques or methods are used and followed”.
Examples of Instrumental analysis:
There are following examples of instrumental analysis:
Spectroscopy
Spectrometery
Electrochemical analysis
what are the different types of instrumental analysis?
There are following different kinds of instrumental analysis:
Chromatography
Electrophoresis
Laser technique
How instrumental method of analysis is useful in the field of analysis?
There are followinng advantages of instrumental analysis
More quick and reliable method
More saving method for substance under analysis
More speedy method and most accurate method also.
Volumetric analysis:
Defination of volumetric analysis:
Volumetric analysis can be defined as follows:
“The process of analysis of an known chemical by the addition of known reagent to the into known amounts to take place a chemical reaction”.
Example of volumetric analysis:
Volumetric analysis can be examplified as follows:
Acid-base titration:
As in the titration of HCl(hydrochloric acid) and NaOH(Sodium hydroxide).
What are the different kinds of volumetric analysis:
There are following three main types volumetric analysis
Simple titration
Double titration
Back titration
What are the advantages of volumetric analysis?
There are following advantages of volumetric analysis given as follows:
More quick and reliable method
More saving method for substance under analysis
More speedy method and most accurate method also.
Which steps are involved in a chemical analysis?
There are following steps involved in a chemical analysis:
To find a problem or a question
By choosing an appropriate method of analysis Sampling technique
Selection of mainly representative substance Analysis of a sample Description Results
what do you know about sample preparation in analysis of a sample in analytical chemistry?
First we should take the desired amount of the substance in grams(mass). Than another substance expressed in moles 6.02214076 × 1023 Solution in terms of analytical chemistry: Solution can be defined as follows “A homogenous mixture of two or more than two substance is called solution”. Composition of solution:
A solution contains two types of substances: Solute :The substance which is to be dissolved.
Solvent:
The substance in which solvent is dissolved.
Solute present in a solution sometimes completely dissolved and dissappear or may be partially dissolved and present in a small amount in the solutiuon
Types of solution:
There are following two main types of a solution
Electrolyte solution
Non-electrolyte solution
Electrloyte solution contains ions of opposite charges and conduct electricity. Example of an electrolytic solution: Electrolytic solution od sodium chloride
Non electrolyte solution does not contain any ion, and they do not conduct electricity.
