What is the molality of solution if its density is ? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
What is the molality of $1\text{ M } NaOH$ solution if its density is $1.04 \text{ g/mL}$?
Answer: 1
💡 Solution & Explanation
$\text{Mass of 1 L solution} = 1040\text{ g}$. <br>$\text{Mass of solute } (NaOH) = 40\text{ g}$. <br>$\text{Mass of solvent} = 1000\text{ g} = 1\text{ kg}$. <br>$\text{Molality} = 1\text{ mol} / 1\text{ kg} = 1\text{ m}$.
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