This is because the bonds that exist between sodium and chloride, and magnesium and chloride are not entirely ionic and some degree of covalency exists. 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.
Likewise, people ask, why does magnesium chloride have a high melting point?
Magnesium chloride is an ionic compound and has a high melting point. These highly charged ions will attract other ions more strongly than ions with one charge, therefore more energy will be needed to overcome the electrostatic forces of attraction and so the melting points will be higher.
Also Know, does sodium chloride have a high melting point? 801 °C
Also Know, why does sodium chloride have a high melting point?
Sodium chloride has a high melting point because the lattice is constructed from positive sodium ions and negative chloride ions. This ions attract each other with a strong electrostatic force. To break the bonds between the ions you jeed high temperature. The melting temperature depends on the ion charges.
Why is magnesium chloride more conductive than sodium chloride?
You would expect the attractions between magnesium ions and chloride ions to be greater than those between sodium and chloride ions due to the extra charge on the magnesium. Solid magnesium chloride is a non-conductor of electricity because the ions aren’t free to move.
19 Related Question Answers Found
Which has a higher melting point sodium chloride or potassium chloride?
(i) Br- is bigger than Cl- so KCl has a higher lattice energy and a higher melting point than KBr. (ii) K+ is larger than Na+ so NaCl has a higher lattice energy and a higher melting point than KCl. The Ag+ ion is intermediate in size between Na+ and K+.
What is the pH of magnesium chloride?
With a stability constant of zero, magnesium chloride is completely ionized across a wide pH range–from a low pH of 2 to 3, found in stomach acid, to the slightly alkaline physiologic pH of 7.4, found in the main extracellular body fluids such as serum and lymph.
Why is sodium chloride a good conductor of electricity?
> Why is sodium chloride a good conductor of electricity? That’s because the salt dissociates into sodium and chlorine ions after it hits the water. Ions are mobile and have a charge, and thus the solution can easily support electrical current.
Does magnesium chloride have a high melting point?
714 °C
Why is the melting point of calcium oxide higher than sodium chloride?
Ionic compounds have high melting points: Explain why and explain why Calcium Oxide has a higher melting point than Lithium Chloride. Ionic compounds are formed when electrostatic attractions form between oppositely charged ions. CaO has a higher melting point than LiCl due to the Ca2+ ion.
Why dissolved sodium chloride conducts electricity in water?
Pure water contains very few ions, so it does not conduct electricity very well. When table salt is dissolved in water, the solution conducts very well, because the solution contains ions. Sodium chloride contains sodium ions, which have a positive charge, and chloride ions, which have a negative charge.
Why is MgCl2 a covalent character?
Covalent character in ionic compounds results from the high charge density of the metal cation and the large polarisable electron cloud of the non-metal anion. This results in the Cl electron cloud in MgCl2 being distorted to a greater extent.
What are the conditions needed for sodium chloride to conduct electricity?
Sodium chloride will conduct electricity only when it is in a liquid state or in solution, this is because the ions are free to move in this state, allowing them to carry charge and conduct electricity.
What is the melting and boiling point of sodium chloride?
Solutions of sodium chloride have very different properties from pure water. The freezing point is −21.12 °C (−6.02 °F) for 23.31 wt% of salt, and the boiling point of saturated salt solution is near 108.7 °C (227.7 °F).
Can NaCl conduct electricity?
Solid sodium chloride doesn’t conduct electricity, because there are no electrons which are free to move. Now, mix it in water and place the two leads from the battery and the below things happens: As soon as the salt is mixed in water, we get Na+ and Cl- ions.
What happens when sodium chloride is heated?
When NaCl is heated, it gets hot then, at 801°C it melts and at 1413°C , it boils and when it is molten, It can conduct Electricity.
Why does sodium chloride have a high melting point GCSE?
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.
What is sodium chloride?
Sodium chloride is the chemical name for salt. Sodium is an electrolyte that regulates the amount of water in your body. Sodium also plays a part in nerve impulses and muscle contractions. Sodium chloride is used to treat or prevent sodium loss caused by dehydration, excessive sweating, or other causes.
Does co2 have a high melting point?
The larger the small covalent molecule, the greater the intermolecular bonds, hence higher boiling / melting point. CO2 has 3 atoms involved in the molecule and is therefore larger than O2 that has 2 atoms. Hence, CO2 has a higher boiling / melting point compared to O2.
What is the structure of sodium chloride?
NaCl
Why is sodium chloride safe to eat but sodium and chloride are poisonous?
Sodium chloride is edible. But elemental sodium and chlorine are highly reactive and poisonous. On the other hand, sodium metal and chlorine gas are elements. Na has an electron configuration of [Ne] 3s1 and so it really wants to lose that single electron to form a full outer shell as a Na+ ion.
Why does magnesium oxide have such a high melting point?
Why is the melting point of magnesium oxide so high? Both magnesium and oxygen form ions. The ions attract to form a lattice. This gives magnesium oxide a high melting point as a lot of energy is needed to break it apart.
Is magnesium chloride an electrolyte?
Magnesium chloride, like other ionic compounds, is a strong electrolyte which means it completely dissociates into its ions in aqeuous solution (i.e. when dissolved in water). While solid magnesium chloride does not have the ability to conduct electricity; molten ionic salts will conduct electricity.
Can magnesium conduct electricity?
Magnesium conducts electricity, mainly because it is a metallic element. Other similar metals that also conduct electricity are sodium and aluminum.