Not many would have come across this. So I decided to post it. Laugh away.

From: meyerar#NoSpam.scooby.beloit.edu (Arden Meyer)

When I was in High School, my chemistry teacher had the privilege of
scaring most of the freshman chem class. He had a wooden cutting block set
out on the bench at the front of the class, with a large butcher's knife.
After everyone took their seats, he produced an apple, two 200 mL beakers
containing clear fluid, an empty 500 mL beaker, and an eye dropper. He
proceeded to cut the apple in half, and then place the knife back in a
locked drawer (he didn't trust us!). With the dropper, he squirted some of
liquid A onto one half of the apple, and we all saw it eat away at the
apple rather quickly. Then, after rinsing the dropper, he squirted some of
liquid B onto the remaining half of the apple, which also ate it away. He
then poured liquid A and liquid B into the 500 mL beaker, and swirled the
mixture for a few moments (about twenty seconds). He then downed the whole
thing in one big swallow!

As it turned out, liquid A was hydrocloric acid, and liquid B was sodium
hydroxide. They were both of the same molarity, and so when mixed, they
produced salt water. The most interesting happening of this was the next
year, when a young lady passed out as the teacher swallowed his drink...

## if you have the stupidity to try this, make sure you know alot about
chemistry and that you get the concentrations right!!! ##

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

From: Chris Ingram <ingramc#NoSpam.csdc02.orl.lmco.com>

This prank is very similar to one you have listed, except it backfired.
Our high school chemistry teacher used equal molarity solutions of HCl and
NaOH, mixed them and drank them in front of class. While he did not burn
his gullet, he did use phenophthalene as the indicator. He later learned that phenophthalene is the main ingredient in many laxatives and paid dearly for his mistake over the next several days.

From a related idea:

Always assume a gun is loaded. Even when you KNOW it's empty, still assume the gun is loaded.

The law of unintended consequences waits for no man.

True, True, True.
I cant wait to stop laughing before I hop into bed before a good sleep. Should never assume that internet jokes make you grunt.

While I know in my heart that equal molarity solutions of Sodium Hydroxide and Hydrochloric acid will cancel each other out, there's no way I'd try it in such a dramatic fashion.

Darwin applies even to high-school chemistry teachers.

(Except in Kansas, of course, where any stupid mistake was intelligently designed to happen.)

I don't even remember what "molarity" means. :)

I know what a mole is, though.

Where did Kansas come into the picture?
Are you, Example, anywhere related to this?

>He later learned that phenophthalene is the main ingredient
>in many laxatives and paid dearly for his mistake over the
>next several days.

Some kids at my school knew this; stole a bunch and started putting it in people's food.

> I know what a mole is, though.

There's only one way to get rid of a mole.

>> Where did Kansas come into the picture? <<

Anyone who does this, and gets it wrong enough to where they die ("Science teacher kills self in front of class!"), is deserving of a Darwin Award nomination.

Darwin came up with the theory of evolution.

Various school boards in Kansas have said that the teacher needs to teach alternate theories, such as Intelligent Design.

So, if you run fast enough, you can make the leap from NaOH to ID in KS.

Try and keep up.
:-)

My high school chemistry teacher ate chalk. The other one took a balloon filled with hydrogen in to the class and set a lighter to it. I completely missed the burning explosion and just heard the pop.

Completely missed the burning explosion how? Do you mean you were looking the other way? Incidentally, a balloon filled with hydrogen is tame; a balloon filled with a 2:1 mixture of hydrogen and oxygen on the other hand...that one needs ear protection.

"a balloon filled with a 2:1 mixture of hydrogen and oxygen on the other hand"

Isn't that a water balloon?

LOL. Water balloon.

Yeah, I was looking the other way. I heard the pop, but didn't see the flames.

It isn't a water balloon until _after_ you've gone deaf from the bang. And then it's more like a few shreds of rubber and a wisp of steam.

Honestly, don't try this without ear protection though. It makes a VERY loud bang.

"I don't even remember what "molarity" means. :)"

Effectively it means there was the same number of molecules, so all of them cancelled each other out. Obviously he's not likely to have gotten it perfectly accurate, but it was enough for the imbalance in the liquid's pH rating to be negligible.

During chemistry we were fortunate to have the "pyromaniac" teacher take the lesson on explosions. We were all stood outside on a cold winter morning whilst he filled a bowl with water and washing up liquid. He then dangled two rubber tubes into the mixture, the other ends being connected to oxygen and hydrogen cylinders. Within a few seconds bubbles were all over the place and we were warned that we should stand a bit further back and that "we should stick our fingers in our ears". The "bomb" was lit using a splint taped onto the end of a 1 metre rule.

Afterwards he told us about how, as a trainee he was told about it by a senior colleague. Unfortunately the colleague didn&#8217;t mention anything about performing the experiment outdoors. After the bang he looked up to see a room full of startled pupils coved in dust that had been blown down from the suspended ceiling.

Apparently if you take a bottle of Diet Coke and add a couple of Mentos, some really cool shit happens.

Flasher T - Link for the exp:

http://www.bbc.co.uk/radio1/scottmills/features/science_experiment/

Yes, a couple of colleagues did the same thing a couple of days. Really does work. :)