Question

Calculate the concentration of a solution in volume per cent which contains 10g of potassium nitrate dissolved in 150g of water

Answer 1

concentration of solution =mass of solute
÷volume of solution ×100
=10÷160×100
=6.25%

Answer 2

The concentration of a solution in volume per cent which contains 10g of potassium nitrate dissolved in 150g of water = 6.25%

GIVEN :-

Solution in volume per cent which contains 10g of potassium nitrate dissolved in 150g of water.

TO FIND:-

Calculate the concentration of a solution in volume per cent which contains 10g of potassium nitrate dissolved in 150g of water

SOLUTION:-

• A concentration of the solution is a measurement of particular of a solute in a solution, in terms of the amount of substance per unit volume of solution.

The volume of solute (Potassium nitrate) = 10g

The volume of solvent (Water) = 150g

As we know, Volume of solution = volume of solute + volume of solvent.

Total volume of solution =

$10 + 150 \\ = 160g$

The Concentration Percentage of solution =

$= \frac{volume \: of \: solute}{total \: volume \: of \: solution} \times 100$

$= \frac{volume \: of \: potassium}{total \: volume \: of \: solution} \times 100$

By putting in the formula

$\frac{10}{160} \times 100 \\ = \frac{1000}{160} \\ = 6.25\%$

Hence, the concentration of a solution in volume per cent which contains 10g of potassium nitrate dissolved in 150g of water = 6.25%

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