Question

A solution contains 50 g of common salt in 450 g of water .calculate the concentration of the solution.

Answer 1

Answer: 10%

Explanation:

The mass of the common salt (solute) = 50 g   (given)

The mass of water = 450 g   (given)

So,

The total mass of solution = mass of salt + mass of water

so,

mass of solution = 50 g + 450 g

                          = 500 g

Now,

To be found :

The concentration of the solution

We know that,

∴ The concentration of solution = 10%

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Answer 2

Answer:

10%

Explanation:

Mass of Solute (Salt) = 50g

Mass of Solvent (Water) = 450g

• We know that,

=> Mass of Solution =

Mass of Solute + Mass of solvent.

= 50g + 450g

= 500g.

• Now, to be found:

=> Concentration of solution =

Mass of Solute / Mass of solution × 100

= 50 / 500 × 100

= 10 %

• Now, Concentration of solution = 10%

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