Question

To make a saturated solution 36g of sodium chloride is dissolved in 100 g of water at 293 k. Find its concentration at this temperature? ​

Answer 1

Question :

• To make a saturated solution 36g of sodium chloride is dissolved in 100 g of water at 293 k. Find its concentration at this temperature?

Solution :

$\sf \: Mass \: of \: solute \: (sodium \: chloride) = 36 g (Given)$

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

$\sf \: Then, mass \: of \: solution = Mass \: of \: solute + Mass \: of \: solvent$

$\: \: \: \: \: \: \: \: \sf= (36 + 100) g \:$

$\: \: \: \: \: \: \: \: \: \: \: \: \sf= 136 g$

$\sf \: Therefore, \: concentration \: (mass \: by \: mass \: percentage) of \: the \: solution$

$\: \: \: \: \: \: \: \large= \sf\frac{Mass \: of \: solute }{mass \: of \: solvent \: × \: 100 \% }$

$\: \: \: \: \: \: \: \: \: \: \: \: \large \sf= \frac{36 }{136 × 100 \% }$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = {\underline {\underline{{\sf26.4 \%}}}}$

I Hope you understand this concept :)

Answer 2

Answer:

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Explanation:

mass of solute ( sodium chloride) = 36g

mass of solvent ( water ) = 100g

mass of solutions = mass of solute + mass of solvent

= 36g + 100g = 136 g

concentration = mass of solute/ mass of solvent × 100

so , concentration = 36g / 136g × 100 = 26.47 g

hope it's correct and helpful for you

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