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Why Salt Has a Giant Lattice and Can Conduct Electricity!

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H

Hafsa

11/3/2022

Chemistry

Science: chemistry

Why Salt Has a Giant Lattice and Can Conduct Electricity!

Ionic compounds possess unique properties due to their giant ionic lattice structure. These compounds, like sodium chloride, exhibit high melting and boiling points, electrical conductivity in certain states, and water solubility. Their structure and bonding determine these characteristics, making them essential in various applications.

  • Ionic compounds form giant lattice structures with alternating positive and negative ions
  • They have high melting and boiling points due to strong electrostatic forces
  • Electrical conductivity of ionic compounds in solution or molten state occurs when ions are free to move
  • Ionic compounds are typically soluble in water and solid at room temperature
  • The giant ionic lattice structure of sodium chloride is a prime example of these properties
...

11/3/2022

67

The Properties of lonic Compounds
The Structure of Lonic Compounds
heat
Sodium & chlorine.
2 Na
Cl₂
• Each crystal of sodium chloride doesn'

View

The Properties of Ionic Compounds

Ionic compounds exhibit several distinctive properties due to their unique structure and bonding. These properties include:

  1. High melting and boiling points
  2. Electrical conductivity in certain states
  3. Water solubility
  4. Solid state at room temperature

Definition: Melting and boiling points - The temperatures at which a substance changes from solid to liquid meltingmelting and from liquid to gas boilingboiling.

The high melting and boiling points of ionic compounds are a result of the strong electrostatic forces of attraction acting in all directions within the giant lattice structure. To overcome these forces:

  • Some forces are overcome during melting
  • Remaining forces are overcome during boiling

The more energy required to break these forces, the higher the melting and boiling points of the compound.

Highlight: The strong electrostatic forces in the giant ionic lattice structure of sodium chloride contribute to its high melting and boiling points.

Regarding electrical conductivity of ionic compounds in solution or molten state, two conditions must be met for a substance to conduct electricity:

  1. It must contain charged particles e.g.,delocalizedelectronsorionse.g., delocalized electrons or ions
  2. These particles must be free to move and carry electrical charge

Example: Solid ionic compounds typically do not conduct electricity because the ions are fixed in place. However, when melted or dissolved in water, the ions become mobile and can conduct electricity.

Ionic compounds can conduct electricity in molten states or in solution because the giant lattice structure is broken, allowing ions to move freely and carry electrical charge.

Vocabulary: Electrical conductivity - The ability of a substance to allow the flow of electric current through it.

These properties make ionic compounds essential in various applications, from their use in everyday items like table salt to more complex industrial processes.

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Chemistry

67

Nov 3, 2022

2 pages

Why Salt Has a Giant Lattice and Can Conduct Electricity!

H

Hafsa

@smarthafsa

Ionic compounds possess unique properties due to their giant ionic lattice structure. These compounds, like sodium chloride, exhibit high melting and boiling points, electrical conductivity in certain states, and water solubility. Their structure and bonding determine these characteristics, making... Show more

The Properties of lonic Compounds
The Structure of Lonic Compounds
heat
Sodium & chlorine.
2 Na
Cl₂
• Each crystal of sodium chloride doesn'

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The Properties of Ionic Compounds

Ionic compounds exhibit several distinctive properties due to their unique structure and bonding. These properties include:

  1. High melting and boiling points
  2. Electrical conductivity in certain states
  3. Water solubility
  4. Solid state at room temperature

Definition: Melting and boiling points - The temperatures at which a substance changes from solid to liquid meltingmelting and from liquid to gas boilingboiling.

The high melting and boiling points of ionic compounds are a result of the strong electrostatic forces of attraction acting in all directions within the giant lattice structure. To overcome these forces:

  • Some forces are overcome during melting
  • Remaining forces are overcome during boiling

The more energy required to break these forces, the higher the melting and boiling points of the compound.

Highlight: The strong electrostatic forces in the giant ionic lattice structure of sodium chloride contribute to its high melting and boiling points.

Regarding electrical conductivity of ionic compounds in solution or molten state, two conditions must be met for a substance to conduct electricity:

  1. It must contain charged particles e.g.,delocalizedelectronsorionse.g., delocalized electrons or ions
  2. These particles must be free to move and carry electrical charge

Example: Solid ionic compounds typically do not conduct electricity because the ions are fixed in place. However, when melted or dissolved in water, the ions become mobile and can conduct electricity.

Ionic compounds can conduct electricity in molten states or in solution because the giant lattice structure is broken, allowing ions to move freely and carry electrical charge.

Vocabulary: Electrical conductivity - The ability of a substance to allow the flow of electric current through it.

These properties make ionic compounds essential in various applications, from their use in everyday items like table salt to more complex industrial processes.

Sign up to see the contentIt's free!

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Improve your grades

Join milions of students

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The Structure of Ionic Compounds

Ionic compounds, such as sodium chloride, have a unique structure that gives them their distinctive properties. The structure of ionic compounds is characterized by a regular arrangement of alternating positive and negative ions, forming a giant lattice structure.

In the case of sodium chloride, sodium atoms lose electrons to chlorine atoms, forming sodium ions Na+Na+ and chloride ions ClCl-. These ions are then held together by strong electrostatic forces of attraction, creating a three-dimensional lattice structure.

Vocabulary: Giant ionic lattice structure - A regular arrangement of alternating charged ions eitherpositiveornegativeeither positive or negative that extends in three dimensions and contains a huge number of ions.

The structure of ionic compounds can be represented in two ways:

  1. A 3D ball and stick model of the lattice
  2. A 3D space-filling model showing the ionic lattice structure

Example: In sodium chloride NaClNaCl, sodium ions and chloride ions are arranged in a cubic lattice structure, with each ion surrounded by six oppositely charged ions.

Highlight: The giant ionic lattice structure of sodium chloride is a perfect example of how ionic compounds are organized at the molecular level.

This giant lattice structure is responsible for many of the properties of ionic compounds, including their high melting and boiling points and their ability to conduct electricity in certain states.

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