plating Archives - Free ZIMSEC & Cambridge Revision Notes

January 2023

Summary of plating and its uses

By garikaib|2022-09-15T12:39:09+02:00January 24th, 2023|Notes, O Level Science Notes, Ordinary Level Notes|

Tin plating is used in making food cans. Image credit alsagerfoodbank.org.uk ZIMSEC O Level Combined Science Notes: Summary of plating and its uses

The electroplating processes can be summarized as below

The various plating processes and their uses […]

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Rusting and Painting
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Rusting and Painting

Notes, O Level Science Notes, Ordinary Level Notes

Rusting and Painting

By garikaib|2022-09-15T12:39:08+02:00January 24th, 2023|Notes, O Level Science Notes, Ordinary Level Notes|

ZIMSEC O Level Combined Science Notes: Rusting and Painting

Painting is a popular method used to prevent rusting
The structure to be painted is cleaned using an acidic solution
This removes existing rust and dirt
Sand paper/scrubbing material is also used to clean the surface to be painted
The surface is then left to dry
Once it is dry […]

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Experiment Chrome plating a nickel cathode

By garikaib|2022-09-15T12:39:11+02:00January 24th, 2023|Notes, O Level Science Notes, Ordinary Level Notes|

Nickel and Chrome plate. Image credit 1911forum.com ZIMSEC O Level Combined Science Notes: Experiment Chrome plating a nickel cathode

Aim: To chrome plate a nickel cathode

Materials: nickel-plated electrode, lead electrode, beaker, chromic acid

Method

Set up an electrolytic cell using a nickel plated cathode from this […]

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