How to make hydrogen with 2 pencils (video 2 of 4)

2nd of 4 videos showing how to make hydrogen with pencils - yeah it's basic but it's pretty cool to see the bubbles come off. stay tuned for the 555 timer oscillator circuit I'm building with a MOSFET - more advanced

Category:

Howto & Style

Tags:

• science
• fair
• basic
• hydrogen
• production

[hazzhazzz]

that was cool and to save you some research that was the oxygen not the chlorine

[makinghydrogen]

Thanks! "Oxygen is not given off in this experiment...The chlorine gas is from the chloride in the salt. The oxygen in the hydroxl ions stay in the solution. So, what is released in this reaction is not oxygen but is chlorine gas that collects around the pencil tip. Around the other pencil is hydrogen gas." - Source energyquest

google: hydrogen pencils

and it's the 3rd listing down and there is also one on pbs

[nrz666]

Use baking soda instead of salt to get no chlorine.

[shaswell01]

@hazzhazzz @hazzhazzz

Hmm not much of a nerd are we...

NaCl Disociates in solution to form Na+ and Cl-

H2O forms H+ and OH- when in liquid phase

In this reaction the half equations are

2H+ 2e- = H2 (Hydrogen)

2Cl- - 2e- = Cl2 (Chlorine)

The remaining Na+ ion and hydroxyl ion form NaOH, gradually turning the solution more alkaline as the reaction progresses.

Now don't pretend to be a nerd and stop being a total clampet and sprouting scientific bolocks.

[chemistrymagicman]

That is very smart, the graphite rods in the pencil conduct electricity, thus using electrolysis.

[zacharypedersen]

@Michael2k5x911 dude use tap water and capture the hydrogen gas in a bottle then throw it into a fire pit.its crazy but dangerous

[zacharypedersen]

adding salt?dang man dont inhale the gas man. salt has NaCl. and will put out chlorine gas which can kill ya

[williepie]

use baking soda

[sundeeptoor3333]

What if I don't put salt in the glass of water....how long do you think will it take to clearly see the bubbles coming out of the end point of the pencils?....i know that salt is only used to speed up the reaction but what if we don't put any salt, how long will it take?...I'm a bit afraid in using salt bec. salt contains chlorine which when inhaled might kill a person.

[tranceneverstop]

yes you can :D

[Michael2k5x911]

ok i only need 2 know 1 thing can i blow shit up with it?