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Category: Solutions

Sublimation

April 14, 2014January 28, 2021 Surfguppy1 CommentSolutions
sublimation

WHAT TYPE OF SOLID SUBLIMES? We all know that ice melts before it evaporates. In sublimation, the liquid phased is omitted.

Dissociation

April 14, 2014March 29, 2021 SurfguppyLeave a commentSolutions
Dissociation of compound

Dissociation is the breaking down of a compound into elements and the process is usually reversible.

Osmosis

April 8, 2014January 27, 2021 SurfguppyLeave a commentSolutions
Osmotic pressure was discovered by by Jean Antoine Nollet in 1784

In 1784, a French physicist and clergyman named Jean Antoine Nollet made an interesting discovery. He filled a pig’s bladder with a concentrated solution of alcohol. He then put the bladder in water and the bladder expanded! This interesting process Read More …

Properties of Colloids

April 8, 2014January 28, 2021 SurfguppyLeave a commentSolutions
Colloid particles repel one another due to presence of similar charges

Do you know that the cloudy water syndrome in a fish tank is caused by colloids? Over a period of time, organic waste produced by the fish and algae in the tank are turned into nitrates. These particles are interspersed Read More …

Brownian Motion

April 7, 2014January 28, 2021 SurfguppyLeave a commentSolutions
Brownian Motion Cartoon - Chemistry

Irregular motion of suspended particles is called “Brownian motion”. Watch an interesting Youtube video on the discovery of Brownian Motion by British botanist Robert Brown Robert Brown was a Scottish botanist who first discovered the Brownian motion. He noticed random Read More …

Molality

April 6, 2014January 27, 2021 SurfguppyLeave a commentSolutions
Molality = mol solute / kg solvent

Molality is defined as the number of moles of solute per 1 (kg) of solvent. Solute = particles you dissolve Solvent = the liquid you use for dissolving the particles Example Calculate molality (m) of 29.8 g of glucose (C6H12O6) dissolved in Read More …

Hydrophobic

April 4, 2014January 22, 2021 SurfguppyLeave a commentSolutions
Hydrophobic means "fear of water"

Nonpolar molecules do not dissolve readily in water Nonpolar molecules do not become hydrated – they are repelled by water The molecules are insoluble or almost insoluble in water Oils and fats are examples of hydrophobic substances. For example, if you mix Read More …

Solubility

April 1, 2014January 27, 2021 SurfguppyLeave a commentSolutions
Solubility is how much of the substance you can dissolve in a given amount of solvent

The solubility of a substance is the amount of that substance that will dissolve in a given amount of solvent. The difference between solute and solvent SOLUTE – the substance to be dissolved SOLVENT – the liquid for dissolving the Read More …

solubility

Categories

THE MOLE

  • The Mole Relationship to Carbon
  • The Mole Concept
  • What is Molecular Mass?
  • How to calculate the number of moles
  • Molar Mass
  • Avogadro’s Constant
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Energy Levls

  • The Bohr Model
  • Ionization energy trend
  • Periodic Table Trends
  • Electronegativity Bond Scale
  • The Octet Rule of Electron Configuration
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Covalent Bonds

  • Carbon to Carbon Bonds
  • Covalent Bonding
  • Nonpolar Covalent Bond
  • Polar Covalent Bond
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Ionic Bonds

  • What is an ionic bond?
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COLLIGATIVE PROPERTIES OF SOLUTION

  • Atmospheric Pressure & Boiling Point
  • Freezing Point Depression
  • Boiling Point Elevation
  • Vapor Pressure Lowering
  • Colligative Properties of Solutions
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Solutions

  • Sublimation
  • Dissociation
  • Osmosis
  • Properties of Colloids
  • Brownian Motion
  • Molality
  • Hydrophobic
  • Solubility
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Thermodynamics

  • Open, Closed & Isolated Systems
  • System and Surroundings
  • Enthalpy Change Calculation
  • Enthalpy, Entropy & Gibbs Free Energy
  • Enthalpy
  • Reaction Spontaneity
  • Hess’s Law
  • Hess Law – Calculation for Methane Formation
  • Understanding Gibbs Free Energy
  • Gibb’s Free Energy – Ammonia
  • Entropy
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Polymers

  • Carbon to Carbon – Single, Double & Triple Bonds
  • Condensation Polymerization
  • Addition Polymerization
  • Types of Plastics and their Classification
  • What is Polymerization?
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Carbohydrates

  • 3 Simple Steps – the Ring Structure of Glucose Molecule
  • Simple Sugars – Monosaccharides
  • Carbohydrates and Sugar
  • 4 Simple Steps – Chain Glucose Molecule
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Categories

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