Maharashtra BoardEnglish MediumSTD 12 ScienceChemistrySolutions2 Marks
Question
Define: (a) Molality (b) Osmotic pressure.
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Answer
Osmotic pressure: The excess of pressure on the side of the solution, that stops the net flow of solvent into the solution through a semipermeable membrane is called osmoticpressure. Molality Molality (m) is defined as the number of moles of the solute per kilogram of the solvent. It is expressed as: Molality $(m)=\frac{\text { Moles of solute }}{\text { Mass of solvent in Kg }}$
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