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Electrolysis of Water Model STEM Lab

Product Code : SCL-M-12460

Quick Answer: The Electrolysis of Water Model is a Hofmann-style unit that splits water into hydrogen and oxygen using a 6V to 12V DC supply. Its 50ml graduated collection tubes show that twice as much hydrogen as oxygen is produced.

Last updated: October 2026

Key Features

  • Hofmann-style electrolysis unit for school chemistry
  • Transparent graduated collection tubes, 50ml capacity
  • Base with integrated power terminals
  • Connecting leads with crocodile clips
  • Shows the 2:1 volume ratio of hydrogen to oxygen

Technical Specifications

SpecificationValue
Model typeHofmann-style electrolysis unit
Collection tubesTransparent, graduated, 50ml capacity
Operating voltage6V to 12V DC
BaseIntegrated power terminals
LeadsConnecting leads with crocodile clips

About This Product

Once the vessel is filled with water, a little electrolyte is added to improve conductivity and the terminals are connected to the DC supply. Bubbles rise at both electrodes and the graduated tubes let students read the gas volumes, finding about twice as much gas at the negative terminal. The model supports lessons on electrochemistry, stoichiometry and hydrogen as a fuel.

Frequently Asked Questions

At which terminal is more gas collected in the Electrolysis of Water Model?

At the negative terminal, where hydrogen forms. Its volume is about twice that of the oxygen collected at the positive terminal.

What power supply does the Electrolysis of Water Model need?

A DC source of 6V to 12V connected to the base terminals.

Related: Measurement, Acid Base Experiment Kit STEM Lab and Structure of Atom Kit STEM Lab.

For a quotation on the Electrolysis of Water Model STEM Lab, contact Educational Instrument.

   
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