what happens when sodium chloride is added to boiling water and why??
Can someone please explain!
The boiling point rises from its normal value of 100 degrees celsius. The increase in boiling point depends upon the amount of NaCl added.
Is there a website that explains this please??
Here is some information. This is called either boiling point elevation or ebullioscopy.
http://en.wikipedia.org/wiki/Boiling-point_elevation
When sodium chloride (NaCl) is added to boiling water, it dissolves completely, and the water continues to boil at the same temperature.
To understand why this happens, we need to consider the properties of both sodium chloride and water. Sodium chloride is an ionic compound composed of positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-). Water is a polar molecule made up of oxygen and hydrogen atoms, which gives it a slightly positive charge on the hydrogen side and a slightly negative charge on the oxygen side.
When NaCl is added to water, the positive sodium ions are attracted to the slightly negative oxygen side of water molecules, while the negative chloride ions are attracted to the slightly positive hydrogen side. The water molecules surround the ions, separating them from one another, which allows them to dissolve in the water. This process is called hydration.
The dissolution of sodium chloride in water does not affect the boiling point of the water. The boiling point of a liquid is determined by the strength of the intermolecular forces between its molecules. In the case of water, the intermolecular forces are hydrogen bonds, which are relatively strong. The addition of sodium chloride does not disrupt these hydrogen bonds significantly, so the boiling point of water remains relatively unchanged.
In summary, when sodium chloride is added to boiling water, it dissolves due to the attraction between the ions and the polar water molecules. This dissolution does not affect the boiling point of the water, which remains the same.