Boiling Point of NaCl


Mar 23, 2023 ,

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boiling point of nacl

The boiling point of water is the temperature at which it turns into a vapour. The water boils at 100 degrees Celsius or 212 Fahrenheit at atmospheric pressure. At high altitudes the vapor pressure is lower, so the boiling point is lower.

Sodium chloride, commonly known as salt, is an ionic compound with a chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions with molar masses of 22.99 and 35.45 g/mol respectively.

When dissolved, sodium chloride dissociates into two charged particles (Na one plus ion and Cl one minus ion) which alter the intermolecular forces between water molecules as well as induce ion-ion dipole interaction which is more stronger than hydrogen bond and hence leads to the elevation of boiling point.

Salt, like other strong electrolytes, usually dissociates when dissolved into an acidic solution. Sodium chloride is a weaker electrolyte than magnesium chloride, but the difference in the number of particles dissolved is enough to cause a change in the freezing and boiling points if everything else is kept constant.

Any time a nonvolatile solute is added to a solvent, it can affect the liquid’s properties by changing its concentration. In the case of salt, adding 58 grams of salt to every kilogram of water will raise the boiling point by about 0.5 C.