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

[nrz666]

Use baking soda instead of salt to get no chlorine.

[zacharypedersen]

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

[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.

[williepie]

use baking soda

[tranceneverstop]

yes you can :D

[Michael2k5x911]

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

[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

[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

[hazzhazzz]

ok i dont want to sound like a complete nerd here but that site is wrong. the salt ( sodium chloride ) is a catalyst and is therefor does nto in any way effect the products of the reaction , it just speeds it up

[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.