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?

Unlocking Electroplating: A Dive Into Reactivity 3.2.16

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

Table of content

Intro to Electroplating 🎈

 

Electroplating involves coating an object with a thin layer of pure metal via electrolysis. It's like giving your metal object a brand new, shiny outfit!

Electrolysis using Carbon vs Metal Electrodes 🔋

  • Inert Carbon Electrodes
    • Example: Electrolysis of aqueous copper(II) sulfate.
    • Electrodes don't react with the solution.
  • Reactive Metal Electrodes
    • Example: Electrolytic cell with copper sulfate solution, both anode & cathode made of copper.
    • Adds material to the cathode (plating) & takes material away from the anode (eroding).

How does Electroplating work? 🔬

  • Oxidation at Anode: Metal anode is oxidized to produce cations in the solution.

    • E.g., Copper anode erodes to form Cu²⁺(aq) ions.
  • Reduction at Cathode: These cations travel and get reduced at the cathode, forming a metal layer.

    • E.g., Steel cathode plated with a copper layer. Think of it as your steel getting a "copper makeover"!
  • Impurities in the Process: Impure copper as anode? No problem!

    • Impurities may stay on the anode or remain in the solution, based on their reactivity.

Real-World Application: Purification 🕶

Want pure copper? Use impure copper as the anode. As it erodes, pure copper plates onto the cathode. Impurities either chill with the old anode or swim in the solution.

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 🌟

Nail IB's App Icon
IB Resources
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chemistry HL
Chemistry HL

Chapter 6 - What Are The Mechanisms Of Chemical Change?

Unlocking Electroplating: A Dive Into Reactivity 3.2.16

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

Table of content

Intro to Electroplating 🎈

 

Electroplating involves coating an object with a thin layer of pure metal via electrolysis. It's like giving your metal object a brand new, shiny outfit!

Electrolysis using Carbon vs Metal Electrodes 🔋

  • Inert Carbon Electrodes
    • Example: Electrolysis of aqueous copper(II) sulfate.
    • Electrodes don't react with the solution.
  • Reactive Metal Electrodes
    • Example: Electrolytic cell with copper sulfate solution, both anode & cathode made of copper.
    • Adds material to the cathode (plating) & takes material away from the anode (eroding).

How does Electroplating work? 🔬

  • Oxidation at Anode: Metal anode is oxidized to produce cations in the solution.

    • E.g., Copper anode erodes to form Cu²⁺(aq) ions.
  • Reduction at Cathode: These cations travel and get reduced at the cathode, forming a metal layer.

    • E.g., Steel cathode plated with a copper layer. Think of it as your steel getting a "copper makeover"!
  • Impurities in the Process: Impure copper as anode? No problem!

    • Impurities may stay on the anode or remain in the solution, based on their reactivity.

Real-World Application: Purification 🕶

Want pure copper? Use impure copper as the anode. As it erodes, pure copper plates onto the cathode. Impurities either chill with the old anode or swim in the solution.

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 🌟

AI Assist

Expand

AI Avatar
Hello there,
how can I help you today?