The density of solution of NaCl is . Molality of the solution is (Nearest integer). [Molar mass of Na , Cl ]

Question

The density of  solution of NaCl is . Molality of the solution is   (Nearest integer). [Molar mass of Na , Cl ]

Canvas Classes · Accepted Answer

Strategy:
 Calculate molality () using the standard relationship with Molarity () and density (): .

Step 1: Quantities per 1 L solution
- Moles of .
- Mass of solution .
- Mass of solute .

Step 2: Calculate mass of solvent

Step 3: Calculate molality and convert format

In terms of :

Rounding to the nearest integer gives 364.

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