Chemistry HL
6
Chapters
243
Notes
Chapter 1 - Models Of The Particulate Nature Of Matter
Chapter 2 - Models Of Bonding & Structure
Chapter 3 - Classification Of Matter
Chapter 4 - What Drives Chemical Reactions?
Chapter 5 - How Much, How Fast & How Far?
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chemistry HL
Chapter 1 - Models Of The Particulate Nature Of Matter
Unraveling Aqueous Solutions: Molarity & Concentration Basics
417 words
3 mins read
Last edited on 5th Nov 2024
Table of content
What is a solution? 🧪
- Definition: A solution is a homogenous mixture of two or more components.
- Solvent: The major component. Think of this like the water in lemonade!
- Solute: The other ingredients, like sugar in lemonade.
- Examples: Sugar in water (water is solvent, sugar is solute). Even in a 96% ethanol in water solution, water is still considered the solvent.
Classifying solutions by concentration 📊
- Concentrated: Think of this as a super sweet lemonade, with lots of sugar.
- More than 10g of solute per 100g of solvent.
- Dilute: Like weak tea, with a small proportion of solute.
- Less than 10g of solute per 100g of solvent.
Molar concentration (molarity) 🧐
- Molar Concentration: The ratio of solute amount to solution volume.
- Units: moldm(-3), also known as molL(-1), or M.
- Examples:
- 1mmol dm(-3) = 1×10(-3) mol dm(-3)
- 1µmol dm(-3) = 1×10(-6) mol dm(-3)
- Saying "2.5M NaOH" means each liter contains 2.5 moles of NaOH.
Mass concentration 🏋️
- Mass Concentration: The ratio of the mass of the solute to the volume of the solution.
- Common Units: gdm(-3) and gcm(-3).
- Relation to Molar Concentration: Depends on the molar mass.
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Chemistry HL
Chapter 1 - Models Of The Particulate Nature Of Matter
Unraveling Aqueous Solutions: Molarity & Concentration Basics
417 words
3 mins read
Last edited on 5th Nov 2024
Table of content
What is a solution? 🧪
- Definition: A solution is a homogenous mixture of two or more components.
- Solvent: The major component. Think of this like the water in lemonade!
- Solute: The other ingredients, like sugar in lemonade.
- Examples: Sugar in water (water is solvent, sugar is solute). Even in a 96% ethanol in water solution, water is still considered the solvent.
Classifying solutions by concentration 📊
- Concentrated: Think of this as a super sweet lemonade, with lots of sugar.
- More than 10g of solute per 100g of solvent.
- Dilute: Like weak tea, with a small proportion of solute.
- Less than 10g of solute per 100g of solvent.
Molar concentration (molarity) 🧐
- Molar Concentration: The ratio of solute amount to solution volume.
- Units: moldm(-3), also known as molL(-1), or M.
- Examples:
- 1mmol dm(-3) = 1×10(-3) mol dm(-3)
- 1µmol dm(-3) = 1×10(-6) mol dm(-3)
- Saying "2.5M NaOH" means each liter contains 2.5 moles of NaOH.
Mass concentration 🏋️
- Mass Concentration: The ratio of the mass of the solute to the volume of the solution.
- Common Units: gdm(-3) and gcm(-3).
- Relation to Molar Concentration: Depends on the molar mass.
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Chemistry HL. Subscribe now and get closer to that 45 🌟
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