Why is melting point of NaCl higher?

Sodium Chloride has a high melting point, as it has a giant ionic lattice hence has strong electrostatic forces of attraction between oppositely charged ions, which requires lots of energy to overcome the forces.

Why NaCl has higher melting point than ice?

More energy is required to break the many ionic bonds in the giant ionic lattice than to break the weaker Hydrogen bonds between the H2O molecules. More energy to break bonds, means more thermal energy hence higher temperature, hence NaCl has a much higher melting point than ice.

Which has a higher melting point NaCl or CsCl?

Predict which solid in each pair will have the higher melting point and why. NaCl or CsCl? NaCl because it has a smaller ion size.

Do you expect the melting point of NaCl to be greater than equal to or less than that of MgCl2 Why?

Sodium chloride (NaCl) has a melting point of 801 degree Celsius, while that of magnesium chloride (MgCl2) is 714 degrees Celsius. These factors combine to result in a higher force of attraction in sodium chloride as compared to magnesium chloride and hence a higher melting point for the former.

Would you expect the melting point of CaCl2 to be high or low?

Calcium chloride, CaCl2, is a typical ionic halide and is a solid at room temperature. Its molecular weight is 110.98 g/mol and its melting point is 772 °C. Very few natural minerals occur.

Does nacl or nabr have a higher melting point?

Despite metallic bonding being a strong type of bonding, ionic bonding is stronger in this case. This means that more energy (and higher temperatures) are needed to melt the sodium bromide in comparison to sodium on its own, hence Sodium Bromide has a higher melting point.

Which alkali metal has lowest melting point?

Caesium
Detailed Solution. Caesium has the least melting point. The melting point of alkali metals decreases on moving down the group.

Why MGO has higher melting point than NaCl?

As the charge in the ionic lattice in Magnesium Oxide is two times as large, the ionic bonding is stronger so more energy is required to overcome the electrostatic attraction and break down the ionic lattice.