MASS BY MASS PERCENTAGE
Mass by mass percentage of a solution = \(\frac{mass \,\,of\,\, solute}{mass \,\,of \,\,solution}\,\,\times\,\,100\)
Note:
A solution is a homogeneous mixture of two or more substances
The component of the solution that is dissolved in the solvent (usually present in lesser quantity) is called the solute.
Illustration:
A solution contains 40 g of common salt in 320 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.
Sol:
Mass of solute (salt)= 40 g Mass of solvent (water) = 320 g
We know,
Mass of solution = Mass of solute +
Mass of solvent
= 40 g + 320 g
= 360 g
Mass percentage of solution \(\frac{mass \,\,of\,\, solute}{mass \,\,of \,\,solution}\,\,\times\,\,100\)
= \(\frac{40}{360}\,\,\times\,\,100\) = 11.1 %
VOLUME BY VOLUME PERCENTAGE
Volume by volume percentage of a solution = \(\frac{volume \,\,of\,\, solute}{volume \,\,of \,\,solution}\,\,\times\,\,100\)
Note:
A solution is a homogeneous mixture of two or more substances
The component of the solution that is dissolved in the solvent (usually present in lesser quantity) is called the solute.
Illustration:
A solution contains 5 ml of alcohol mixed with 75 ml of water. Calculate the concentration of the solution in terms of volume percent.
Sol:
Volume of alcohol = 5 ml
Volume of solution= (5 + 75) = 80 ml
Concentration of solution = \(\frac{volume \,\,of\,\, solute}{volume \,\,of \,\,solution}\,\,\times\,\,100\)
= \(\frac{5}{80}\,\,\times\,\,100\) = 6.25 %
Source: This topic is taken from NCERT TEXTBOOK
MASS BY VOLUME PERCENTAGE
Mass by volume percentage of a solution = \(\frac{mass \,\,of\,\, solute}{volume \,\,of \,\,solution}\,\,\times\,\,100\)
Note:
A solution is a homogeneous mixture of two or more substances.
The component of the solution that is dissolved in the solvent (usually present in lesser quantity) is called the solute.
Source: This topic is taken from NCERT TEXTBOOK