Question

to make a saturated solution 36 gram of sodium chloride is dissolved in 100 gram of water at 293 K find its concentration at this temperature​

Answer 1

Answer:

Mass of solute (sodium chloride) =36g

Mass of solvent (water) =100g

Mass of solution = Mass of Solute + Mass of solvent

= 36g +100g = 136g

concentration = mass of solute / mass of solvent × 100

so , concentration = 36grm/136grm ×100

=26.47 %

Answer 2

$\rm Mass \: of \: solute(salt) = 36g$

$\rm Mass \: of \: solvent(water) = 100g$

$\rm \: Mass \: of \: solution = Mass \: of \: solute + Mass \: of \: solvent$

$\rm \qquad \qquad = 36g + 100g$

$\rm \qquad \qquad = 136g$

$\rm \: Mass \: percentage \: of \: solution$

$\rm \qquad \qquad = \frac{Mass \: of \: solute}{Mass \: of \: solution} \times 100$

$\rm \qquad \qquad = \frac{360}{136} \times100$

$\rm \qquad \qquad = 26.4\%$