Problem: An aqueous NaCl solution is made using 126 g of NaCl diluted to a total solution volume of 1.15 L .Calculate the molality of the solution. (Assume a density of 1.08 g/mL for the solution.)

FREE Expert Solution

We’re being asked to calculate for the molality of an aqueous solution prepared by dissolving 126 g NaCl in a total volume of 1.15 L. 


When calculating for molality, we use the following equation:

molality (m)=mol solutekg solvent 

Aqueous solution → water is the solvent

Solute → NaCl


We will calculate the molality of the solution using the following steps:

Step 1: Calculate the moles of solute

Step 2. Calculate the mass of the solvent (in kg).
Step 3. Calculate the molality of the solution.

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Problem Details

An aqueous NaCl solution is made using 126 g of NaCl diluted to a total solution volume of 1.15 L .

Calculate the molality of the solution. (Assume a density of 1.08 g/mL for the solution.)