Relationship between Structure and Properties
-High Solubility
This is because potassium chloride has alternating potassium cations and chloride anions. Water is a polar molecule meaning that it has an uneven charge distribution. The negative charges (oxygen) of water attract the positive potassium ions available in the potassium chloride. The same theory works for the positive ions (hydrogen) in water that attract to the chloride ions in potassium chloride. The negative and positive attracts allow the sodium chloride to dissolve in water.
-Boiling Point
Attractive electrostatic forces between oppositely charged particles create very strong bonds. Therefore takes a lot of energy to break these bonds apart resulting in a high boiling point.
-Melting Point
Ionic compounds and the bonding holding the compound together are ionic. The structure of KCl is a crystal lattice structure consisting of each K+ surrounding by Cl- ions, the bonds have to be broken to melt the compound. Therefore a large amount of energy has to be applied to break a strong bound holding the atoms
-High conductivity when dissolved in water
When dissolved in water, creates a solution full of ions that easily conduct electricity
-High Solubility
This is because potassium chloride has alternating potassium cations and chloride anions. Water is a polar molecule meaning that it has an uneven charge distribution. The negative charges (oxygen) of water attract the positive potassium ions available in the potassium chloride. The same theory works for the positive ions (hydrogen) in water that attract to the chloride ions in potassium chloride. The negative and positive attracts allow the sodium chloride to dissolve in water.
-Boiling Point
Attractive electrostatic forces between oppositely charged particles create very strong bonds. Therefore takes a lot of energy to break these bonds apart resulting in a high boiling point.
-Melting Point
Ionic compounds and the bonding holding the compound together are ionic. The structure of KCl is a crystal lattice structure consisting of each K+ surrounding by Cl- ions, the bonds have to be broken to melt the compound. Therefore a large amount of energy has to be applied to break a strong bound holding the atoms
-High conductivity when dissolved in water
When dissolved in water, creates a solution full of ions that easily conduct electricity