why molality is preferred over molarity in expressing the gas?
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Molality is no of moles of solute dissolved in 1kg of solvent. While Molarity is no of moles of solute dissolved per litre of solution. As Molality involves mass and molarity involves volume…. As volume changes with temperature but mass doesn't……that's why Molality is preferred over molarity to express concentration.
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Hey mate!
Molarity is number of moles per unit volume of the solution and molality is number of moles per unit mass of solvent.
The advantage of using molality is that, being a mass-base ratio, it does not vary with temperature, unlike molarity (the volume of the solution, the denominator in molarity, varies with temperature).
Hence, molality is preferred!
Hope it helps!
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Molarity is number of moles per unit volume of the solution and molality is number of moles per unit mass of solvent.
The advantage of using molality is that, being a mass-base ratio, it does not vary with temperature, unlike molarity (the volume of the solution, the denominator in molarity, varies with temperature).
Hence, molality is preferred!
Hope it helps!
Mark me as brainliest!
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