The density of 3M solution of sodium chloride is 1.252 g

Question:

The density of $3 \mathrm{M}$ solution of sodium chloride is $1.252 \mathrm{~g} \mathrm{~mL}^{-1}$. The molality of the solution will be (molar mass, $\mathrm{NaCl}=58.5 \mathrm{~g} \mathrm{~mol}^{-1}$ )

  1. 2.18 m

  2. 3.00 m 

  3. 2.60 m

  4. 2.79 m


Correct Option: 1

Solution:

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