Question

concentration of solution ki definition in class 9th​

Answer 1

Answer:

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Answer 2

Answer:

The concentration of a solution is the amount of solute present in a given quantity of the solution.

Explanation:

There are various methods of expressing concentration of a solution

1. Cor S = Weight of solute in grams/ Volume in litres
2. ppm (A) = Mass of A/ Total mass of solution ×106
3. Mass percentage of A = Mass of component A/ Total mass of solution ×100
4. Volume percentage of A = Volume of component A/ Total volume of solution ×100
5. Molality (m) = Mass of solute/ Mass of solvent in Kg
6. Normality (N) = Weight of solute in grams/ Equivalent mass\times Volume in litre

One example of related to this:

1) 2ml of water is added to 4g of a powdered drug. The final volume is 3ml. Find the mass by volume percentage of the solution?

Answer 1) Given, Mass of solute = 4g

=Volume of solution = 3ml

=Mass by volume percentage = Mass of solute/ Volume of solution×100

= 4g3ml×100

= 133%

Therefore, the mass by volume percentage is 133%.