Question

To make a saturated solution, 36 g of sodium chloride is dissolved in 100 ml of water at 293 K. Find its concentration at this temperature.

Answer 1

${\large{\underline{\underline{\pmb{\frak{Let's\;understand\;the\;concept:-}}}}}}$

☀️   As per the given information, we have mass of sodium chloride and water. We need to calculate the concentration of the saturated solution at the temperature of 293K. Firstly, calculate the mass of solution and then Concentration in order to get the required answer

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${\large{\underline{\underline{\pmb{\frak{Given:-}}}}}}$

Mass of Sodium chloride is 36g

Mass of water is 100ml = 100g

${\large{\underline{\underline{\pmb{\frak{To\;find:-}}}}}}$

Concentration of this saturated solution

${\large{\underline{\underline{\pmb{\frak{solution:-}}}}}}$

❍  To calculate the concentration of the solution we must know that ::  

$\sf \bigstar \;\; Concentration\;of\;solution = \dfrac{Mass\;of\;solvent}{Mass\;of\;solution} \times 100 \%$

Where,

• Solvent is sodium chloride

• Solution is sodium chloride with water

Finding the Mass of the solution :-

Mass of Sodium chloride + Mass of Water    

⤳ 36g + 100g    

⤳ 136g

Finding the Concentration :-

 

⤳ 36/136 × 100%    

⤳ 18/68 × 100%

⤳ 1800/68 %  

⤳  26.47%  

 

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• Henceforth, the concentration of this saturated solution is 26.47% at 293K.

Answer 2

Finding the Concentration :-

⤳ 36/136 × 100%

⤳ 18/68 × 100%

⤳ 1800/68 %

⤳ 26.47%

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• Henceforth, the concentration of this saturated solution is 26.47% at 293K.