Sodium chloride is an ionic compound and has a melting point of 801oC.Why is the melting point of sodium chloride so high?Strong covalent bonds in all directions in the lattice.The large number of strong electrostatic attractive forces.Weak forces between the molecules.They are solids at room temperature.
Question
Sodium chloride is an ionic compound and has a melting point of 801oC.Why is the melting point of sodium chloride so high?Strong covalent bonds in all directions in the lattice.The large number of strong electrostatic attractive forces.Weak forces between the molecules.They are solids at room temperature.
Solution
The high melting point of sodium chloride, which is 801°C, can be attributed to the strong electrostatic forces of attraction between the positively charged sodium ions and the negatively charged chloride ions. This ionic bonding results in a large amount of energy being required to overcome these forces and melt the compound.
The statement about "strong covalent bonds in all directions in the lattice" is incorrect as sodium chloride is an ionic compound, not a covalent one.
The statement about "weak forces between the molecules" is also incorrect. In fact, the forces between the ions in an ionic compound like sodium chloride are strong, not weak.
The statement "They are solids at room temperature" is correct. Due to the strong ionic bonds, sodium chloride and similar compounds are solid at room temperature. However, this doesn't explain the high melting point, it's more a result of it.
Similar Questions
Explain why ionic substances have high melting points.
The melting point of sodium metal is 98°C and the melting point ofsodium chloride is 801°C.Explain the difference in the melting points of these two substances
Ionic compounds tend to have high melting and boiling points. What is the primary reason for this?Group of answer choicesWeak intermolecular forces in the crystal latticeHigh kinetic energy of ionsStrong electrostatic forces between ions
There are very strong electrostatic forces of attraction in all directions in a giant ionic lattice.Why does this result in a very high melting point?A lot of energy is needed to overcome the electrostatic forces and separate the electrons from each other.A lot of energy is needed to overcome the electrostatic forces and hold the ions together.A lot of energy is needed to overcome the electrostatic forces and separate the atoms from each other.A lot of energy is needed to overcome the electrostatic forces and separate the ions from each other.
Potassium iodide is an ionic compound.What is the reason for potassium iodide's high melting point?They are solids at room temperature.The large number of strong electrostatic attractive forces.Strong covalent bonds in all directions in the lattice.Weak forces between the molecules.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.