Densityconcentration curves for aqueous solutions of (a) EG, (b) DEG
Is Molality Temperature Dependent. A) molarity b) molality oc) percentage by mass d) mole fraction question 9 (10 points) equal masses of carbon dioxide (co2) and. Suggest corrections 0 similar questions q.
Densityconcentration curves for aqueous solutions of (a) EG, (b) DEG
Determine the molality of a solution prepared by dissolving 28.60g of glucose (c 6h 12o 6) into 250g of water. Molarity is dependent on temperature. Web molarity is dependent on temperature because the volume of solution changes when heated or cooled. Web molality is used because its value does not change with changes in temperature. Web most of the time scientists use either molarity or molality to represent solution concentration, but molality is preferred when the temperature of the solution varies. Molality is given by m= w solventn solute w solvent is the mass of solvent which is independent of temperature. For example, assume we dissolve 0.5 moles of sodium chloride salt in 1 liter of water at 1 degree. Here, it is dependent on volume which is temperature dependent. How does molality depend on temperature? You know that volume depends on temperature, therefore molarity is.
The volume of a solution, on the other hand, is slightly dependent upon temperature. Molality is defined as the numbe rof moles of solute per kg of solvent. Web correct option is c) molality= mass of the solvent in kgnumber of moles of the solute both, the number of moles of solute and the mass of the solvent are independent of the temperature of the solution. As the molarity includes the volume of a solution, that can change with a change in temperature. Thus, the assertion is correct. Web molality is used because its value does not change with changes in temperature. The reason is very simple, if you see molarity definition, molarity is the amount of substance of solute per litre of solvent and that mean it depends on volume. Determine the molality of a solution prepared by dissolving 28.60g of glucose (c 6h 12o 6) into 250g of water. Molarity is dependent on temperature. The volume of the solution depends on the temperature. Web most of the time scientists use either molarity or molality to represent solution concentration, but molality is preferred when the temperature of the solution varies.
