GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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kilogram of solvent
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kiloliter of solvent
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kilometer of solvent
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ounces of solvent
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Detailed explanation-1: -The molality (m) of a solution is the moles of solute divided by the kilograms of solvent. A solution that contains 1.0mol of NaCl dissolved into 1.0kg of water is a “one-molal” solution of sodium chloride. The symbol for molality is a lower-case m written in italics.
Detailed explanation-2: -Molality is a measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with the definition of molarity which is based on a specified volume of solution. A commonly used unit for molality in chemistry is mol/kg.
Detailed explanation-3: -The moles of solute per kilogram of solvent is known as the molality. Molality is defined as the property of a solution. The SI unit for molality is mol/kg.
Detailed explanation-4: -Molality is defined as the “total moles of a solute contained in a kilogram of a solvent.” Molality is also known as molal concentration. It is a measure of solute concentration in a solution.
Detailed explanation-5: -Calculate the number of moles of solute. Calculate the number of kilograms of solvent. Divide moles of solute by kilograms of solvent This solution has a molality of 0.0100 mol glucose / 0.0100 kg water = 1.00 mol glucose / kg water.