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Friday, 22 May 2015

Find Concentration By Percentage Of Mass Or By Percentage Of Volume

What are the various methods to express
concentration of a solution? 

Answer: There are many ways to express strength of a solution. are:

1. Percentage by mass 
2. Percentage by volume 

1. Percentage by mass: It is defined as number of parts by  mass of the solute dissolved per hundred parts by mass of the solution. i.e.  

2. Percentage by volume: It is defined as the number of parts by volume of the solute dissolved in hundred parts by volume of the solution.

Similarly, for liquid in liquid solutions, the strength of a solution can be expressed as
Note Mass percentage concentration of solution is independent of temperature. While mass by volume percentage strength of a solution is temperature
dependent, since volume changes with temperature.

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