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Which Of These Solutes Raises The Boiling Point Of Water The Most?

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Which Of These Solutes Raises The Boiling Point Of Water The Most?

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Question

Which of these solutes raises the boiling point of water the most? ionic lithium chloride (LiCl) ionic sodium chloride (NaCl) molecular sucrose (C12H22O11) ionic sodium phosphate (Na3PO4) ionic magnesium bromide (MgBr2)

Answer

Answer : Option C) ionic sodium phosphate Explanation : Amongst the given choices the ionic molecule of sodium phosphate will dissociate into the most ions in the water and it is the number of particles that affect the raising of boiling point or depression of freezing point.As this property is dependent on the ratio of number of molecules of solute dissolved in number of solvent molecules in a solution, and not on the nature of the chemical species present which is called as a colligative property. As the Total there are 4 ions produced, which is higher than others. which gives only 2 ions; this gives 2 ions; it gives only 1 molecule not ions. it gives in all 3 ions.So, the correct answer is ionic sodium phosphate which gives maximum number of ions when dissolved in water.

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Boiling-point elevation - Wikipedia

Boiling-point elevation – Wikipedia – Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water. The boiling point can be measured accurately using an ebullioscopeThere can also be cases, like adding HCl to water, where as solute is added, first the boiling point increases to a maximum (108 °C around 20% HCl) above the boiling point of water, then decrease to below the boiling point of water (48 °C for 38% HCl). Glucose is non-volatile and increases the boiling point of water.The van t'Hoff factor for these solutes is: A. 2. B. 2. C. 1. D. 4. E. 3. The solute with the greatest van t'Hoff factor will cause the greatest boiling point elevation, so answer D.

Does the boiling point of an aqueous solution depend on – When salt is added to water, the sodium chloride separates into sodium ions and chloride ions. The premise of boiling point elevation is that the added particles raise the temperature needed to bring water to its boiling point. The extra particles interfere with the interactions between solvent molecules (water, in this case).Which of these solutes raises the boiling point of water the most? ionic lithium chloride (LiCl) ionic sodium chloride (NaCl) molecular sucrose (C12H22O11)As I understand it, the boiling point elevation in a particular solvent (in this case water) is a function of a particular constant of that solvent, and the molality of a dissolved substance. In turn, the maximum molality is a function of the solubility of the compound, as well as the van 't' Hoff factor.

Does the boiling point of an aqueous solution depend on

Which of these solutes raises the boiling point of water – According to Table 13.8.1, the molal boiling point elevation constant for water is 0.51°C/m. Thus a 1.00 m aqueous solution of a nonvolatile molecular solute such as glucose or sucrose will have an increase in boiling point of 0.51°C, to give a boiling point of 100.51°C at 1.00 atm.Which of these solutes raises the boiling point of water the most? A. molecular sucrose (C12H22O11) B. ionic sodium chloride (NaCl) C. ionic potassium bromide (KBr) D. ionic calcium chloride (CaCl2) E. ionic aluminum fluoride (AlF3)Adding salt to water increases the boiling point of water due to a fundamental colligative property of matter known as boiling point elevation. Whenever a solute, such as salt, is added to a solvent, such as water, the boiling point becomes higher than that of the pure solvent.

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