Chemistry HL
Chemistry HL
6
Chapters
243
Notes
Chapter 1 - Models Of The Particulate Nature Of Matter
Chapter 1 - Models Of The Particulate Nature Of Matter
Chapter 2 - Models Of Bonding & Structure
Chapter 2 - Models Of Bonding & Structure
Chapter 3 - Classification Of Matter
Chapter 3 - Classification Of Matter
Chapter 4 - What Drives Chemical Reactions?
Chapter 4 - What Drives Chemical Reactions?
Chapter 5 - How Much, How Fast & How Far?
Chapter 5 - How Much, How Fast & How Far?
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chapter 6 - What Are The Mechanisms Of Chemical Change?
IB Resources
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chemistry HL
Chemistry HL

Chapter 6 - What Are The Mechanisms Of Chemical Change?

Electrolysis In Aqueous Solutions: Unveiling Redox Dynamics!

Word Count Emoji
434 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

Electro-What Now?

Electrolysis: A process where electrical energy breaks down substances, often splitting them into simpler elements or compounds. This process is super cool, especially when we talk about molten ionic salts!

 

🤔 Real-world Example: Think of it like a reverse battery - instead of using a chemical reaction to produce electricity, you're using electricity to drive a chemical reaction!

Basic Electrolysis

Molten Ionic Salts

  • Cations (positively charged ions) are reduced (gain electrons).
  • Anions (negatively charged ions) are oxidized (lose electrons).

Electrolysis of Aqueous Solutions (The Plot Twist!)

When we add water to the mix, it wants to join the party! Both cations and anions of the salt have to compete with water for the redox reactions at the electrodes.

🌊 Water's Tricks

  • Reduction: H₂O + e⁻ → ½ H₂(g) + OH⁻(aq) E⦵ = −0.83V
  • Oxidation: H₂O → ½ O₂(g) + 2H⁺(aq) + 2e⁻ E⦵ = −1.23V

🤔 Real-world Example: Imagine a singing competition (like American Idol). Water is the surprise contestant that could out-sing other participants under the right conditions.

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IB Resources
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chemistry HL
Chemistry HL

Chapter 6 - What Are The Mechanisms Of Chemical Change?

Electrolysis In Aqueous Solutions: Unveiling Redox Dynamics!

Word Count Emoji
434 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

Electro-What Now?

Electrolysis: A process where electrical energy breaks down substances, often splitting them into simpler elements or compounds. This process is super cool, especially when we talk about molten ionic salts!

 

🤔 Real-world Example: Think of it like a reverse battery - instead of using a chemical reaction to produce electricity, you're using electricity to drive a chemical reaction!

Basic Electrolysis

Molten Ionic Salts

  • Cations (positively charged ions) are reduced (gain electrons).
  • Anions (negatively charged ions) are oxidized (lose electrons).

Electrolysis of Aqueous Solutions (The Plot Twist!)

When we add water to the mix, it wants to join the party! Both cations and anions of the salt have to compete with water for the redox reactions at the electrodes.

🌊 Water's Tricks

  • Reduction: H₂O + e⁻ → ½ H₂(g) + OH⁻(aq) E⦵ = −0.83V
  • Oxidation: H₂O → ½ O₂(g) + 2H⁺(aq) + 2e⁻ E⦵ = −1.23V

🤔 Real-world Example: Imagine a singing competition (like American Idol). Water is the surprise contestant that could out-sing other participants under the right conditions.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Chemistry HL. Subscribe now and get closer to that 45 🌟

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