Collecting Hydrogen and Oxigen using only tap water, salt and two laptop charger
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Step 1: Take a Little Bowl
Take a little plastic bowl and fill with salt solution
Step 2: Take Two Big Screw
Using two big screw as electrode. One as Anode and one as Cathode
Step 3: Prepair the Power Supply
The electric flows must be Direct Current (DC) remember, must be DC, AC current won't work. I use two 24v DC Adapter from computer charger connected in serial to gain the voltage to 48v with the current flow about 6 amps.
Step 4: Make the Bubbler
Using water bottle
Step 5: Collecting Hydrogen and Oxigen
The Electrode with more bubble is Hydrogen . Choose what you want to collect and then flip the bubbler over the electrode
Step 6: Test
For Hydrogen: Using lighter to test. But remember : Pure Hydrogen is flamable, but Hydrogen with Oxigen is highly explosive, the amount of hydrogen and oxigen with the ratio of 2:1 in a big bottle can blow you up, so be careful