Question

to make a saturated solution of 25g of sodium cholride is disoved in 75g of water at 293k what is the mass percent​

Answer 1

GIVEN:-

• $\rm{Mass\:of\:Solute=25g}$

• $\rm{Mass\:of\:Solvent=75g}$

TO FIND:-

• $\rm{Mass\: Percentage\:of\:Solution}$

FORMULAE USED:-

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

EXPLANATION:-

We know,

$\rm{Mass\:of\:Solution=Mass\:of\:Solute+Mass\:of\:Solvent}$

$\rm{Mass\:of\:Solution=25g+75g}$

$\rm{Mass\:of\:Solution=100g}$

Now,

Mass percentage of Solution

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

$\implies\rm{\dfrac{25}{100}\times{100}}$

$\implies\rm{\dfrac{25}{\cancel{100}}\times{\cancel{100}}}$

$\implies\rm{25 Percent.}$.

Hence, The mass Percentage of Solution is 25%.

EXTRA INFORMATION.

• When no more solution can not be dissolved in given solution at given temperature. It is called Saturated solution.

• if the amount of Solute contained in a solution less than the saturation level,it is called Unsaturated solution.