The molality of a 10% (w/w) aqueous solution of NaOH is: — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
The molality of a 10% (w/w) aqueous solution of NaOH is:
Answer: B
💡 Solution & Explanation
10g NaOH in 90g water. $\text{Moles} = 10/40 = 0.25$. $\text{Molality} = 0.25 / 0.09 = 2.77 \text{ m}$. [5]
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