Boiling Point of Kcl

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boiling point of kcl

The boiling point of a solution is the change in temperature that occurs when a pure liquid is boiled. It can be expressed mathematically as DT = i * kb * m, where m is the molality of the solution, kb is the ebullioscopic constant, and i is the van’t Hoff factor.

Adding a solute to a pure solvent changes the solution’s boiling point. This is a colligative property of solutions and is described by Raoult’s Law: Xsolv Psolv Tsolvent

Which of the following solutes will result in a higher elevation in the boiling point? 0.1 molar of glucose or 0.1 molar of sodium chloride in 500 mL of water.

NaCl has a higher molar mass than glucose, so the solution with the higher elevation in the boiling point is the one with the highest moles of ions. The difference in moles of ions between the two solutions results from the fact that NaCl dissociates into two ions (Na+ and Cl-) while glucose does not. Therefore, solution 1 will have a higher elevation in the boiling point because more molecules are present in solution 1.

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