Question

To make a saturated solution, 36g of sodium chloride is dissolved in 100g of water at 273k. Find its concentration at this temperature.​

Answer 1

$\bold{\Huge\red{\boxed{{Answer}}}}$

✒ 26.4 %

$\bold{\Huge\pink{\boxed{{{Given}}}}}$

✒ Mass of sodium chloride (solute) = 36g

✒ Mass of water (solvent) = 100g

✒ Temperature = 293 K (Kelvin)

$\bold{\Huge\blue{\boxed{{{To Find}}}}}$

✒ The concentration of solution at 293K

$\bold{\huge\green{\boxed{{{Explanation}}}}}$

• Mass of solute (NACL) = 36g
• Mass of solvent (H²O) = 100g

So, here we find the concentration of solution by 'mass by mass' formula.

As we know,

$\boxed{ \small{ = > Concentration \: of solution = \frac{Mass \: of \: solute}{Mass \: of \: solution}}}$

Total Mass of solution =

Mass of solute + Mass of solvent

= (36 + 100)g

= 136 g

Now substituting the values,

$\huge{= > \frac{36}{136} \times 100}$

$\huge{= > \frac{3600}{100} }$

$\huge{\boxed{\bold{ = > 26.4 \% }}}$

HOPE IT HELPS YOU....❤