Question

A solution contains 16 gram of NaCl in 304 gram of

water.Calculate concentration. ​

Answer 1

Answer:

concentration of solutions

= mass of solute ×100 /mass of solution

= 16×100/304+16

= 1600/320

=5%

Answer 2

Given

A solution contains 16 gram of NaCl in 304 gram of  water

To Find

Concentration

We know that

$\sf \longrightarrow \% \ Concentration=\dfrac{Mass \ of \ Solute}{Mass \ of \ Solution} \times 100$

Given that

A solution contains 16 gram of NaCl in 304 gram of  water

Here

Solute = NaCl

Solvent = Water

Hence

Mass of Solute = 16 g

Mass of Solution = 16 + 304 = 320 g

Substituting the values

We get

$\sf \longrightarrow \% \ Concentration=\dfrac{16}{320} \times 100$

$\sf \longrightarrow \% \ Concentration=0.05 \times 100$

Hence

$\sf \longrightarrow \% \ Concentration= 5$

Therefore

Concentration = 5 %