Question

To make a saturated solution 36 g of sodium chloride is dissolved in 100 g of water at 293 k. find its concentration at this temp.

ASAP....​

Answer 1

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✒ 26.4 %

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

✒ Mass of sodium chloride (solute)=36g

✒ Mass of sodium chloride (solute)=36g✒ Mass of water (solvent) = 100g

✒ 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.

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As we know,

✏ Concentration of solution =

$\boxed{ = \frac{ mass \: of \: soute}{mass \: of \: solution} \times 100}$

Total Mass of solution

= Mass of solute + Mass of solvent

= (36 + 100)g

= 136 g

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Now, substituting the values

$\boxed{ = \frac{ 36}{136} \times 100}$

$\boxed{ = \frac{ 3600}{136} \times 100}$

$\boxed{ = 26.4 \: \%}$

Hence the concentration of solution at 293K is 26.4 %.

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Answer 2

Answer:

26.4 %.

Step-by-step explanation: