Question

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.​

Answer 1

GIVEN

• Mass of Solute (Common salt) = 40g.

• Mass of Solvent (water) = 320g.

TO FIND:-

• Mass by Mass Percentage Solution.

FORMULAE USED:-

• ${\boxed{\rm{Mass\:by\: Percentage\: of\:Solution=\dfrac{Maas\:of\:Solute}{Mass\:of\:Solution}\times{100}}}}$

Where,

Mass of Solution = Solute + Solvent.

Now,

$\implies\rm{Mass\:percentage=\dfrac{Maas\:of\:Solute}{Mass\:of\:Solution}\times{100}}$

$\implies\rm{Mass\:percentage=\dfrac{40}{320+40}\times{100}}$

$\implies\rm{Mass\: Percentage=\dfrac{\cancel{40}\times{100}}{\cancel{360}}}$

$\implies\rm{Mass\: Percentage = \dfrac{100}{9}}$

$\implies\rm{Mass\: Percentage.=11.1 Percent}$.

Hence,The mass by mass Percentage of the Solution is 11.1

MORE TO KNOW

There are two types of Mixture

• Homogeneous Mixture = The Mixture of two or more compound or element of the same kind mixed together is know. as Homogeneous.

• Heterogeneous mixture - The mixture which do not have uniform composition throughout are called Heterogeneous mixture

Answer 2

GIVEN:-

• Mass of Solute (Common salt) = 40g.

• Mass of Solvent (water) = 320g.

TO FIND:-

• Mass by Mass Percentage Solution.

FORMULAE USED:-

• ${\boxed{\rm{Mass\:by\: Percentage\: of\:Solution=\dfrac{Maas\:of\:Solute}{Mass\:of\:Solution}\times{100}}}}$

Where,

Mass of Solution = Solute + Solvent.

Now,

$\implies\rm{Mass\:percentage=\dfrac{Maas\:of\:Solute}{Mass\:of\:Solution}\times{100}}$

$\implies\rm{Mass\:percentage=\dfrac{40}{320+40}\times{100}}$

$\implies\rm{Mass\: Percentage=\dfrac{\cancel{40}\times{100}}{\cancel{360}}}$

$\implies\rm{Mass\: Percentage = \dfrac{100}{9}}$

$\implies\rm{Mass\: Percentage.=11.1 Percent}$

Hence,The mass by mass Percentage of the Solution is 11.1

MORE TO KNOW

There are two types of Mixture

• Homogeneous Mixture = The Mixture of two or more compound or element of the same kind mixed together is know as Homogeneous.

• Heterogeneous mixture - The mixture which do not have uniform composition throughout are called Heterogeneous mixture